@article{ZehmFudickarHansetal.2008,
  author    = {Zehm, Daniel and Fudickar, Werner and Hans, Melanie and Schilde, Uwe and Kelling, Alexandra and Linker, Torsten},
  title     = {9,10-Diarylanthracenes as molecular switches : syntheses, properties, isomerisations and their reactions with singlet oxygen},
  issn      = {0947-6539},
  year      = {2008},
  abstract  = {A series of 9,10-diarylanthracenes with various substituents at the ortho positions have been synthesised by palladium-catalysed cross-coupling reactions. Such compounds exhibit interesting physical properties and can be applied as molecular switches. Despite the high steric demand of the substituents, products were formed in moderate-to-good yields. In some cases, microwave conditions further improved yields. Bis-coupling afforded two isomers (syn and anti) that do not interconvert at room temperature. These products were easily separated and their relative stereochemistries were unequivocally assigned by NMR spectroscopy and X-ray analysis. The syn and anti isomers exhibit different physical properties (e.g., melting points and solubilities) and interconversion by rotation around the aryl-aryl axis commences at <100 °C for fluoro-substituted diarylanthracenes and at >300 °C for alkyl- or alkoxy-substituted diarylanthracenes. The reactions with singlet oxygen were studied separately and revealed different reactivities and reaction pathways. The yields and reactivities depend on the size and electronic nature of the substituents. The anti isomers form the same 9,10-endoperoxides as the syn species, occasionally accompanied by unexpected 1,4-endoperoxides as byproducts. Thermolysis of the endoperoxides exclusively yielded the syn isomers. The interesting rotation around the aryl-aryl axis allows the application of 9,10-diarylanthracenes as molecular switches, which are triggered by light and air under mild conditions. Finally, the oxygenation and thermolysis sequence provides a simple, synthetic access to a single stereoisomer (syn) from an unselective coupling step.},
  language  = {en}
}
@misc{ZehbeKolloscheLardongetal.2017,
  author    = {Zehbe, Kerstin and Kollosche, Matthias and Lardong, Sebastian and Kelling, Alexandra and Schilde, Uwe and Taubert, Andreas},
  title     = {Ionogels based on poly(methyl methacrylate) and metal-containing ionic liquids},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-400607},
  pages     = {16},
  year      = {2017},
  abstract  = {Ionogels (IGs) based on poly(methyl methacrylate) (PMMA) and the metal-containing ionic liquids (ILs) bis-1-butyl-3-methlimidazolium tetrachloridocuprate(II), tetrachloride cobaltate(II), and tetrachlorido manganate(II) have been synthesized and their mechanical and electrical properties have been correlated with their microstructure. Unlike many previous examples, the current IGs show a decreasing stability in stress-strain experiments on increasing IL fractions. The conductivities of the current IGs are lower than those observed in similar examples in the literature. Both effects are caused by a two-phase structure with micrometer-sized IL-rich domains homogeneously dispersed an IL-deficient continuous PMMA phase. This study demonstrates that the IL-polymer miscibility and the morphology of the IGs are key parameters to control the (macroscopic) properties of IGs.},
  language  = {en}
}
@article{ZabelWinterKellingetal.2016,
  author    = {Zabel, Andr{\´e} and Winter, Alette and Kelling, Alexandra and Schilde, Uwe and Strauch, Peter},
  title     = {Tetrabromidocuprates(II)-Synthesis, Structure and EPR},
  series = {International journal of molecular sciences},
  volume    = {17},
  journal   = {International journal of molecular sciences},
  number    = {4},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/ijms17040596},
  pages     = {14},
  year      = {2016},
  abstract  = {Metal-containing ionic liquids (ILs) are of interest for a variety of technical applications, e.g., particle synthesis and materials with magnetic or thermochromic properties. In this paper we report the synthesis of, and two structures for, some new tetrabromidocuprates(II) with several "onium" cations in comparison to the results of electron paramagnetic resonance (EPR) spectroscopic analyses. The sterically demanding cations were used to separate the paramagnetic Cu(II) ions for EPR measurements. The EPR hyperfine structure in the spectra of these new compounds is not resolved, due to the line broadening resulting from magnetic exchange between the still-incomplete separated paramagnetic Cu(II) centres. For the majority of compounds, the principal g values (g|| and gK) of the tensors could be determined and information on the structural changes in the [CuBr4]2- anions can be obtained. The complexes have high potential, e.g., as ionic liquids, as precursors for the synthesis of copper bromide particles, as catalytically active or paramagnetic ionic liquids.},
  language  = {en}
}
@misc{ZabelWinterKellingetal.2016,
  author    = {Zabel, Andr{\´e} and Winter, Alette and Kelling, Alexandra and Schilde, Uwe and Strauch, Peter},
  title     = {Tetrabromidocuprates(II)-Synthesis, Structure and EPR},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-91470},
  pages     = {14},
  year      = {2016},
  abstract  = {Metal-containing ionic liquids (ILs) are of interest for a variety of technical applications, e.g., particle synthesis and materials with magnetic or thermochromic properties. In this paper we report the synthesis of, and two structures for, some new tetrabromidocuprates(II) with several "onium" cations in comparison to the results of electron paramagnetic resonance (EPR) spectroscopic analyses. The sterically demanding cations were used to separate the paramagnetic Cu(II) ions for EPR measurements. The EPR hyperfine structure in the spectra of these new compounds is not resolved, due to the line broadening resulting from magnetic exchange between the still-incomplete separated paramagnetic Cu(II) centres. For the majority of compounds, the principal g values (g|| and gK) of the tensors could be determined and information on the structural changes in the [CuBr4]2- anions can be obtained. The complexes have high potential, e.g., as ionic liquids, as precursors for the synthesis of copper bromide particles, as catalytically active or paramagnetic ionic liquids.},
  language  = {en}
}
@article{ZabelWinterKellingetal.2016,
  author    = {Zabel, Andre and Winter, Alette and Kelling, Alexandra and Schilde, Uwe and Strauch, Peter},
  title     = {Tetrabromidocuprates(II)-Synthesis, Structure and EPR},
  series = {International journal of molecular sciences},
  volume    = {17},
  journal   = {International journal of molecular sciences},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {1422-0067},
  doi       = {10.3390/ijms17040596},
  pages     = {14},
  year      = {2016},
  abstract  = {Metal-containing ionic liquids (ILs) are of interest for a variety of technical applications, e.g., particle synthesis and materials with magnetic or thermochromic properties. In this paper we report the synthesis of, and two structures for, some new tetrabromidocuprates(II) with several "onium" cations in comparison to the results of electron paramagnetic resonance (EPR) spectroscopic analyses. The sterically demanding cations were used to separate the paramagnetic Cu(II) ions for EPR measurements. The EPR hyperfine structure in the spectra of these new compounds is not resolved, due to the line broadening resulting from magnetic exchange between the still-incomplete separated paramagnetic Cu(II) centres. For the majority of compounds, the principal g values (g|| and g(perpendicular to)) of the tensors could be determined and information on the structural changes in the [CuBr4](2-) anions can be obtained. The complexes have high potential, e.g., as ionic liquids, as precursors for the synthesis of copper bromide particles, as catalytically active or paramagnetic ionic liquids.},
  language  = {en}
}
@misc{WinterThielZabeletal.2013,
  author    = {Winter, Alette and Thiel, Kerstin and Zabel, Andr{\´e} and Klamroth, Tillmann and P{\"o}ppl, Andreas and Kelling, Alexandra and Schilde, Uwe and Taubert, Andreas and Strauch, Peter},
  title     = {Tetrahalidocuprates(II) - structure and EPR spectroscopy},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-95012},
  pages     = {1019 -- 1030},
  year      = {2013},
  abstract  = {We present and discuss the results of crystallographic and electron paramagnetic resonance (EPR) spectroscopic analyses of five tetrachloridocuprate(II) complexes to supply a useful tool for the structural characterisation of the [CuCl4]2- moiety in the liquid state, for example in ionic liquids, or in solution. Bis(benzyltriethylammonium)-, bis(trimethylphenylammonium)-, bis(ethyltriphenylphosphonium)-, bis(benzyltriphenylphosphonium)-, and bis(tetraphenylarsonium)tetrachloridocuprate(II) were synthesised and characterised by elemental, IR, EPR and X-ray analyses. The results of the crystallographic analyses show distorted tetrahedral coordination geometry of all [CuCl4]2- anions in the five complexes and prove that all investigated complexes are stabilised by hydrogen bonds of different intensities. Despite the use of sterically demanding ammonium, phosphonium and arsonium cations to obtain the separation of the paramagnetic Cu(II) centres for EPR spectroscopy no hyperfine structure was observed in the EPR spectra but the principal values of the electron Zeeman tensor, g∥ and g⊥, could be determined. With these EPR data and the crystallographic parameters we were able to carry out a correlation study to anticipate the structural situation of tetrachloridocuprates in different physical states. This correlation is in good agreement with DFT calculations.},
  language  = {en}
}
@article{WinterThielZabeletal.2014,
  author    = {Winter, Alette and Thiel, Kerstin and Zabel, Andre and Klamroth, Tillmann and Poeppl, Andreas and Kelling, Alexandra and Schilde, Uwe and Taubert, Andreas and Strauch, Peter},
  title     = {Tetrahalidocuprates(II) - structure and EPR spectroscopy. Part 2: tetrachloridocuprates(II)},
  series = {New journal of chemistry},
  volume    = {38},
  journal   = {New journal of chemistry},
  number    = {3},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1144-0546},
  doi       = {10.1039/c3nj01039b},
  pages     = {1019 -- 1030},
  year      = {2014},
  abstract  = {We present and discuss the results of crystallographic and electron paramagnetic resonance (EPR) spectroscopic analyses of five tetrachloridocuprate(II) complexes to supply a useful tool for the structural characterisation of the [CuCl4](2-) moiety in the liquid state, for example in ionic liquids, or in solution. Bis(benzyltriethylammonium)-, bis(trimethylphenylammonium)-, bis(ethyltriphenylphosphonium)-, bis(benzyltriphenylphosphonium)-, and bis(tetraphenylarsonium) tetrachloridocuprate(II) were synthesised and characterised by elemental, IR, EPR and X-ray analyses. The results of the crystallographic analyses show distorted tetrahedral coordination geometry of all [CuCl4](2-) anions in the five complexes and prove that all investigated complexes are stabilised by hydrogen bonds of different intensities. Despite the use of sterically demanding ammonium, phosphonium and arsonium cations to obtain the separation of the paramagnetic Cu(II) centres for EPR spectroscopy no hyperfine structure was observed in the EPR spectra but the principal values of the electron Zeeman tensor, g(parallel to) and g(perpendicular to), could be determined. With these EPR data and the crystallographic parameters we were able to carry out a correlation study to anticipate the structural situation of tetrachloridocuprates in different physical states. This correlation is in good agreement with DFT calculations.},
  language  = {en}
}
@article{WessigWawrzinekMoellnitzetal.2011,
  author    = {Wessig, Pablo and Wawrzinek, Robert and Moellnitz, Kristian and Feldbusch, Elvira and Schilde, Uwe},
  title     = {A new class of fluorescent dyes based on 1,3-benzodioxole and [1,3]-dioxolo[4.5-f]benzodioxole},
  series = {Tetrahedron letters},
  volume    = {52},
  journal   = {Tetrahedron letters},
  number    = {46},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0040-4039},
  doi       = {10.1016/j.tetlet.2011.09.058},
  pages     = {6192 -- 6195},
  year      = {2011},
  abstract  = {We report on synthesis and photophysical properties of a new class of fluorescent dyes. They are characterized by large Stokes-shifts, long fluorescence lifetimes in organic solvents and a pronounced dependency of the fluorescence lifetime on the solvent polarity. Also worthy of note is the high bleaching stability. To provide access to biochemical and medical applications a series of derivatives were prepared, which exhibit specific reactivity towards different biologically relevant functional groups (carboxylic acids, amines, maleimides, N-hydroxysuccinimide esters). Furthermore, two alkynes were prepared, which could be used in 'Click' chemistry.},
  language  = {en}
}
@article{WessigPickSchilde2011,
  author    = {Wessig, Pablo and Pick, Charlotte and Schilde, Uwe},
  title     = {First example of an atropselective dehydro-Diels-Alder (ADDA) reaction},
  series = {Tetrahedron letters},
  volume    = {52},
  journal   = {Tetrahedron letters},
  number    = {32},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0040-4039},
  doi       = {10.1016/j.tetlet.2011.06.024},
  pages     = {4221 -- 4223},
  year      = {2011},
  abstract  = {A new concept of a stereoselective synthesis of axially chiral biaryls, formed in the course of the dehydro-Diels-Alder (DDA) reaction, has been disclosed. It is based on asymmetric induction of the newly formed chirality axis by a chirality center, which is present in the two synthesized DDA reactants. Depending on the different length of the linkers joining the alkyne moieties the DDA reaction may be triggered photochemically or thermally, where only the thermal variant was stereoselective.},
  language  = {en}
}
@article{WessigMoellnitzKellingetal.2011,
  author    = {Wessig, Pablo and M{\"o}llnitz, Kristian and Kelling, Alexandra and Schilde, Uwe},
  title     = {Crystal structure of 1r,2c,3c,4t,5t,6t-1,2,3,4,5,6-hexakis-trimethylsilanyloxy-cyclohexane, C24H60O6Si6},
  series = {Zeitschrift f{\"u}r Kristallographie : international journal for structural, physical and chemical aspects of crystalline materials ; New crystal structures},
  volume    = {226},
  journal   = {Zeitschrift f{\"u}r Kristallographie : international journal for structural, physical and chemical aspects of crystalline materials ; New crystal structures},
  number    = {2},
  publisher = {De Gruyter Oldenbourg},
  address   = {M{\"u}nchen},
  issn      = {1433-7266},
  doi       = {10.1524/ncrs.2011.0105},
  pages     = {228 -- 230},
  year      = {2011},
  abstract  = {C24H60O6Si6, triclinic, P (1) over bar (no. 2), a = 11.307(2) angstrom, b = 12.159(2) angstrom, = 16.576(2) angstrom, alpha = 109.47(1)degrees, beta = 94.64(1)degrees, gamma = 111.65(1)degrees, V = 1942.3 angstrom(3), Z = 2, R-gt(F) = 0.043, wR(ref)(F-2) = 0.118, T = 210 K.},
  language  = {en}
}
@article{WessigMatthesSchildeetal.2013,
  author    = {Wessig, Pablo and Matthes, Annika and Schilde, Uwe and Kelling, Alexandra},
  title     = {Asymmetric synthesis of (1,5)Naphthalenophanes by Dehydro-Diels-Alder reaction},
  series = {European journal of organic chemistry},
  journal   = {European journal of organic chemistry},
  number    = {11},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1434-193X},
  doi       = {10.1002/ejoc.201201594},
  pages     = {2123 -- 2129},
  year      = {2013},
  abstract  = {An asymmetric variant of the dehydro-Diels-Alder (DDA) reaction has been developed and applied in the atropselective synthesis of various (1,5)naphthalenophanes. Whereas the suitability of the photochemically induced DDA (PDDA) was limited, the thermally induced DDA provided the desired product, depending on the chiral auxiliary used and the length of the linker, with nearly perfect stereoselectivity. Furthermore, the mechanism of the DDA was investigated by means of DFT calculations, and a stepwise mechanism involving 1,4-biradicals was suggested.},
  language  = {en}
}
@article{WessigMatthesSchilde2010,
  author    = {Wessig, Pablo and Matthes, Annika and Schilde, Uwe},
  title     = {Crystal structure of 3,4-diacetyl-15,21-dioxatetracyclo- [23.4.0.02,7.06,11]nonacosa-1(29),2,4,6,8,10,25,27- octaene- 14,22-dione{\`u}water (1:2), C31H32O6 · 2H2O},
  issn      = {1433-7266},
  year      = {2010},
  language  = {en}
}
@article{WessigGerngrossFreyseetal.2016,
  author    = {Wessig, Pablo and Gerngross, Maik and Freyse, Daniel and Bruhn, P. and Przezdziak, Marc and Schilde, Uwe and Kelling, Alexandra},
  title     = {Molecular Rods Based on Oligo-spiro-thioketals},
  series = {The journal of organic chemistry},
  volume    = {81},
  journal   = {The journal of organic chemistry},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0022-3263},
  doi       = {10.1021/acs.joc.5b02670},
  pages     = {1125 -- 1136},
  year      = {2016},
  abstract  = {We report on an extension of the previously established concept of oligospiroketal (OSK) rods by replacing a part or all ketal moieties by thioketals leading to oligospirothioketal (OSTK) rods. In this way, some crucial problems arising from the reversible formation of ketals are circumvented. Furthermore, the stability of the rods toward hydrolysis is considerably improved. To successfully implement this concept, we first developed a number of new oligothiol building blocks and improved the synthetic accessibility of known oligothiols, respectively. Another advantage of thioacetals is that terephthalaldehyde (TAA) sleeves, which are too flexible in the case of acetals can be used in OSTK rods. The viability of the OSTK approach was demonstrated by the successful preparation of some OSTK rods with a length of some nanometers.},
  language  = {en}
}
@article{UhlemannSchildeMickler1996,
  author    = {Uhlemann, Erhard and Schilde, Uwe and Mickler, Wulfhard},
  title     = {Crystal structure of bis(1-phenyldecane-1,3-dionato)-copper(II), Cu(C16H21O2)2},
  issn      = {0044-2968},
  year      = {1996},
  language  = {en}
}
@article{UhlemannSchildeKraudeltetal.1995,
  author    = {Uhlemann, Erhard and Schilde, Uwe and Kraudelt, Heide and Gohlke, Ulrich},
  title     = {Selectivity of amidoxime polymers for the sorption of gallate},
  year      = {1995},
  language  = {en}
}
@article{UhlemannSchildeKraudelt1994,
  author    = {Uhlemann, Erhard and Schilde, Uwe and Kraudelt, Heide},
  title     = {Separation of the oxoanions of germanium, tin, arsenic, antimony, tellurium, molybdenum and tungsten with a special chelating resin containing methylaminoglucitol groups},
  year      = {1994},
  language  = {en}
}
@article{UhlemannSchildeKraudelt1994,
  author    = {Uhlemann, Erhard and Schilde, Uwe and Kraudelt, Heide},
  title     = {Sorption of coinage metal cyano complexes by a chelating resin containing amino-glucitol groups},
  year      = {1994},
  language  = {en}
}
@article{UhlemannSchildeHefeleetal.1994,
  author    = {Uhlemann, Erhard and Schilde, Uwe and Hefele, Heike and Ludwig, Eberhard},
  title     = {Crystal and molecular structure of 2,2'-dihydroxyazobenzene},
  issn      = {0023-4753},
  year      = {1994},
  language  = {en}
}
@article{UhlemannSchildeBansseetal.1995,
  author    = {Uhlemann, Erhard and Schilde, Uwe and Banße, Wolfgang and Ludwig, Eberhard},
  title     = {Crystal structure of bis(1,3-diphenyl-1,3-dionato)oxo-vanadium(IV), C30H2205V},
  issn      = {0044-2968},
  year      = {1995},
  language  = {en}
}
@article{UhlemannHefeleLudwigetal.1996,
  author    = {Uhlemann, Erhard and Hefele, Heike and Ludwig, Eberhard and Schilde, Uwe},
  title     = {Crystal structure of methoxo-oxo[benzoylaceton-salicyl hydrazonato(2-)]vanadium(V), C18H17N2O5V},
  issn      = {0044-2968},
  year      = {1996},
  language  = {en}
}
@article{UhlemannBansseLudwigetal.1995,
  author    = {Uhlemann, Erhard and Banße, Wolfgang and Ludwig, Eberhard and Schilde, Uwe and Weller, Frank},
  title     = {Ligand Exchange Reactions of Bis(acetyl-acetonato)dioxomolybdenum(VI) and Molybdenum Hexacarbonyl},
  year      = {1995},
  language  = {en}
}
@article{TraegerKellingSchildeetal.2012,
  author    = {Tr{\"a}ger, J. and Kelling, A. and Schilde, Uwe and Holdt, H. -J.},
  title     = {rac-1-[(2-Methoxyethyl)sulfanyl]-2-[(2-methoxyethyl)sulfinyl]benzene and its PdCl2 complex},
  series = {Acta crystallographica : Section C, Crystal structure communications},
  volume    = {68},
  journal   = {Acta crystallographica : Section C, Crystal structure communications},
  number    = {9},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {0108-2701},
  doi       = {10.1107/S0108270112032192},
  pages     = {M238 -- +},
  year      = {2012},
  abstract  = {As an extension of recent findings on the recovery of palladium with dithioether extractants, single crystals of the chelating vicinal thioether sulfoxide ligand rac-1-[(2-methoxyethyl)sulfanyl]-2-[(2-methoxyethyl)sulfinyl]benzene, C12H18O3S2, (I), and its square-planar dichloridopalladium complex, rac-dichlorido{1-[(2-methoxyethyl)sulfanyl]-2-[(2-methoxyethyl)sulfinyl]benzene-?2S,S'}palladium(II), [PdCl2(C12H18O3S2)], (II), have been synthesized and their structures analysed. The molecular structure of (II) is the first ever characterized involving a dihalogenidePdII complex in which the palladium is bonded to both a thioether and a sulfoxide functional group. The structural and stereochemical characteristics of the ligand are compared with those of the analogous dithioether compound [Traeger et al. (2012). Eur. J. Inorg. Chem. pp. 23412352]. The sulfinyl O atom suppresses the electron-pushing and mesomeric effect of the SC...;CS unit in ligand (I), resulting in bond lengths significantly different than in the dithioether reference compound. In contrast, in complex (II), those bond lengths are nearly the same as in the analogous dithioether complex. As observed previously, there is an interaction between the central PdII atom and the O atom that is situated above the plane.},
  language  = {en}
}
@article{StrauchNeumannKellingetal.2015,
  author    = {Strauch, Peter and Neumann, Mike and Kelling, Alexandra and Schilde, Uwe},
  title     = {Bis(1,2-dithiosquarato)nickelates(II): Synthesis, Structure, EPR and Thermal Behavior},
  series = {Acta chimica Slovenica},
  volume    = {62},
  journal   = {Acta chimica Slovenica},
  number    = {2},
  publisher = {Drustvo},
  address   = {Ljubljana},
  issn      = {1318-0207},
  pages     = {288 -- 296},
  year      = {2015},
  abstract  = {1,2-Dithiosquaratonickelates are available by direct synthesis from metal salts with dipotassium-1,2-dithiosquarate and the appropriate counter cations. The synthesis and characterization, including mass spectrometry, of a series 1,2-dithiosquaratonickelates(II), [Ni(dtsq)(2)](2-), with several "onium" cations is reported and the X-ray structures of two diamagnetic complexes, (HexPh(3)P)(2)[Ni(dtsq)(2)] and (BuPh3P)(2)[Ni(dtsq)(2)] with sterically demanding counter ions are presented. The diamagnetic nickel complexes have been doped as host lattices with traces of Cu(II) to measure EPR for additional structural information. The thermal behavior of this series is studied by thermogravimetry and differential thermal analysis (TG/DTA). The thermolysis in air as well as under nitrogen atmosphere of these complexes results in nickel oxide nano-particles in all cases, which are characterized by X-ray powder diffraction.},
  language  = {en}
}
@article{StrauchKossmannKellingetal.2016,
  author    = {Strauch, Peter and Kossmann, Alexander and Kelling, Alexandra and Schilde, Uwe},
  title     = {EPR on bis(1,2-dithiosquarato)cuprate(II) in the bis(1,2-dithiosquarato)nickelate(II) host lattice - structure and spectroscopy},
  series = {Chemical papers},
  volume    = {70},
  journal   = {Chemical papers},
  publisher = {De Gruyter},
  address   = {Berlin},
  issn      = {0366-6352},
  doi       = {10.1515/chempap-2015-0154},
  pages     = {61 -- 68},
  year      = {2016},
  abstract  = {EPR spectroscopy is a well suited analytical tool to monitor the electronic situation around paramagnetic metal centres as copper(II) and therefore the structural influences on the paramagnetic ion. 1,2-Dithiosquaratometalates are available by direct synthesis from metal salts with dipotassium-1,2-dithiosquarate and the appropriate counter cations. Synthesis and characterisation of bis(benzyltributylammonium)1,2-dithiosquaratonickelate(II), (BzlBu(3)N)(2)[Ni(dtsq)(2)], and bis(benzyltributylammonium)1,2-dithiosquaratocuprate(II), (BzlBu(3)N)(2)[Cu(dtsq)(2)], with benzyltributylammonium as the counter ion is reported and the X-ray structures of two complexes, (BzlBu(3)N)(2)[Ni(dtsq)(2)] and (BzlBu(3)N)(2)[Cu(dtsq)(2)], are presented. Both complexes, crystallising in the monoclinic space group P2(1)/c, are isostructural with only small differences in the coordination sphere due to the different metal ions. The diamagnetic nickel complex is therefore well suited as a host lattice for the paramagnetic Cu(II) complex to measure EPR for additional structural information. (c) 2015 Institute of Chemistry, Slovak Academy of Sciences},
  language  = {en}
}
@article{SteeplesKellingSchildeetal.2016,
  author    = {Steeples, Elliot and Kelling, Alexandra and Schilde, Uwe and Esposito, Davide},
  title     = {Amino acid-derived N-heterocyclic carbene palladium complexes for aqueous phase Suzuki-Miyaura couplings},
  series = {New journal of chemistry},
  volume    = {40},
  journal   = {New journal of chemistry},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1144-0546},
  doi       = {10.1039/c5nj03337c},
  pages     = {4922 -- 4930},
  year      = {2016},
  abstract  = {In this work, three ligands produced from amino acids were synthesized and used to produce five bis- and PEPPSI-type palladium-NHC complexes using a novel synthesis route from sustainable starting materials. Three of these complexes were used as precatalysts in the aqueous-phase Suzuki-Miyaura coupling of various substrates displaying high activity. TEM and mercury poisoning experiments provide evidence for Pd-nanoparticle formation stabilized in water.},
  language  = {en}
}
@misc{SteeplesKellingSchildeetal.2016,
  author    = {Steeples, Elliot and Kelling, Alexandra and Schilde, Uwe and Esposito, Davide},
  title     = {Amino acid-derived N-heterocyclic carbene palladium complexes for aqueous phase Suzuki-Miyaura couplings},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-394488},
  pages     = {4922 -- 4930},
  year      = {2016},
  abstract  = {In this work, three ligands produced from amino acids were synthesized and used to produce five bis- and PEPPSI-type palladium-NHC complexes using a novel synthesis route from sustainable starting materials. Three of these complexes were used as precatalysts in the aqueous-phase Suzuki-Miyaura coupling of various substrates displaying high activity. TEM and mercury poisoning experiments provide evidence for Pd-nanoparticle formation stabilized in water.},
  language  = {en}
}
@article{StarkeKammerGrunwaldetal.2008,
  author    = {Starke, Ines and Kammer, Stefan and Grunwald, Nicolas and Schilde, Uwe and Holdt, Hans-J{\"u}rgen and Kleinpeter, Erich},
  title     = {Complexation of diazaperylene and bisisoquinoline with transition metal ions in the gas phase studied by electrospray ionization mass spectrometry},
  year      = {2008},
  abstract  = {The complex formation of the ligands 1,12-diazaperylene (dap), 1,1-bisisoquinoline (bis), 2,2-bipyridine (bpy) and 1,10-phenanthroline (phen) with transition metal ions (M = Fe, Co, Ni, Cu, Zn, Ru, Os, Re, Pd, Pt, Ag and Cd) in the gas phase has been studied by electrospray ionization mass spectrometry. With the exception of Ru, Os, Fe, Ni and Cu, singly charged complexes [MLn]+ (n = 1,2) were observed. The complexes of dap and bis with Ru, Os, Fe and Ni ions, and the mixed ligand complexes with bpy and phen, are preferably of the doubly charged type [ML3]2+. In addition, collision- induced dissociation (CID) measurements were employed to evaluate the relative stabilities of these complexes. The CID experiments of mixed-ligand complexes which contain both dap and phen or dap and bpy exhibit preferential elimination of bpy, indicating that bpy is a weaker ligand than phen and dap.},
  language  = {en}
}
@article{SieboldKorabikSchildeetal.2008,
  author    = {Siebold, Matthias and Korabik, Maria and Schilde, Uwe and Mrozinski, Jerzy and Strauch, Peter},
  title     = {Pentanuclear heterobimetallic 3d-4f complexes of Ln2M3-type - structure and magnetism},
  issn      = {0366-6352},
  year      = {2008},
  abstract  = {From a series of pentanuclear, heterobimetallic complexes of the general composition [{Ln(H2O)n}2{Ni(dto)2}3] · xH2O, four complexes (Ln = Gd(III) with n = 4; Ln = Dy(III), Ho(III), or Er(III), with n = 5; x = 9-12; dto = 1,2- dithiooxalate) were studied due to their large magnetic moments (up to 14.65 B.M.). The magnetic properties of these complete series were measured at room temperature and the temperature dependent magnetic properties of the complexes Gd2Ni3, Dy2Ni3, Ho2Ni3, and Er2Ni3 were studied at room temperature down to 1.8 K. Whereas the intramolecular metal- metal distances were rather long (Ni1-Ni2: 11.0-11.5 {\AA}; Ln-Ni: 6.0-6.3 {\AA}), relatively short intermolecular metal-metal distances (Ni1-Ni2;: 3.5 {\AA}; Er-Er;: 6.0 {\AA}) were found in the crystal lattice, giving rise to weak intermolecular metal-metal interactions. These weak spin interactions were also supported by the EPR spectrum of a powdered sample of the diamagnetically undiluted Gd2Ni3 complex.},
  language  = {en}
}
@article{SieboldKellingSchildeetal.2005,
  author    = {Siebold, M. and Kelling, Alexandra and Schilde, Uwe and Strauch, Peter},
  title     = {Heterobimetallic 3d-4-complexes with bis(1;2-dithiooxalato)nickelate(II) as planar bridging block},
  issn      = {0932-0776},
  year      = {2005},
  abstract  = {Planar bis(1,2-dithiooxalato)nickelates(II) react in aqueous solutions of lanthanide ions to form pentanuclear, heterobimetallic complexes of the general composition [{Ln(H2O)(n)}(2)- {Ni(dto)(2)}(3)] (.) xH(2)O (Ln = Y3+, La3+, Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+; n = 4 or 5; x = 9-12). With [{Nd(H2O)(5)}(2){Ni(S2C2O2)(2)}(3)] (.) xH(2)O (x = 10-12) (1) and [{Er(H2O)(4)}(2){Ni(S2C2O2)(2)}(3)] (.) xH(2)O (x = 9- 10) (2) we were able to isolate two complexes of this series as single crystals, which were characterized by X-ray structure analysis. Depending on the individual ionic radii of the lanthanide ions, the compounds crystallize in two different crystal systems with the following unit cell parameters: 1, monoclinic in P2(1)/c with a = 11.3987(13), b = 11.4878(8), c = 20.823(2)angstrom , beta = 98.907(9)degrees and Z = 2; 2, triclinic in P (1) over bar with a = 10.5091(6), b = 11.0604(6), c = 11.2823(6) angstrom, alpha = 107.899(4)degrees, beta = 91.436(4)degrees, gamma = 112.918(4)degrees and Z = 1. The channels and cavities appearing in the packing of the molecules are occupied by uncoordinated water molecules. High magnetic moments up to 14.65 BM./f.u. have been observed at room temperature due to the combined moments of the individual lanthanide ions},
  language  = {en}
}
@article{ShainyanUshakovMeshcheryakovetal.2007,
  author    = {Shainyan, Bagrat A. and Ushakov, Igor A. and Meshcheryakov, Vladimir I. and Schilde, Uwe and Koch, Andreas and Kleinpeter, Erich},
  title     = {The stereodynamics of 3,5-bis(trifluoromethylsulfonyl)-1,3,5-oxadiazinane and 1,3,5- tris(trifluoromethylsulfonyl)-1,3,5-triazinane- an experimental and theoretical study},
  doi       = {10.1016/j.tet.2007.09.041},
  year      = {2007},
  abstract  = {Multinuclear dynamic NMR spectroscopy of 3,5-bis(trifluoromethylsulfonyl)-1,3,5-oxadiazinane (3) revealed the existence of two conformers with differently oriented CF3 groups with respect to the ring, and two dynamic processes: ring inversion and restricted rotation about the N-S bond. Two transition states connecting the two conformers and corresponding to clockwise and counterclockwise rotations about the N-S bond were found; the calculated activation barriers of about 12 kcal/mol are in excellent agreement with those measured experimentally for the related molecule 1,3,5-tris(trifluoromethylsulfonyl)-1,3,5-triazinane (1). X-ray analysis proved the existence of the symmetric isomer of 3, which is the minor isomer in solutions but the only one in the crystal due to packing effects. The normal Perlin effect (JCHax < JCHeq)observed for 2(6)-CH2 in 3, whereas the reversed Perlin effect was found for the 4-CH2 group in 3 as well as for all CH2 groups in 1 both experimentally and theoretically. The latter effect in compounds 1, 3, and 1- (methylsulfonyl)-3,5-bis(trifluoromethylsulfonyl)-1,3,5-triazinane (2) can be considered as a genuine reverse Perlin effect since larger values of 1JCH are observed for longer C-H bonds.},
  language  = {en}
}
@article{ShainyanTolstikovaSchilde2012,
  author    = {Shainyan, Bagrat A. and Tolstikova, Ljudmila L. and Schilde, Uwe},
  title     = {Simple methods for the preparation of N-triflyl guanidines and the structure of compounds with the CF3SO2N=C-N fragment},
  series = {Journal of fluorine chemistry},
  volume    = {135},
  journal   = {Journal of fluorine chemistry},
  number    = {1},
  publisher = {Elsevier},
  address   = {Lausanne},
  issn      = {0022-1139},
  doi       = {10.1016/j.fluchem.2011.12.004},
  pages     = {261 -- 264},
  year      = {2012},
  abstract  = {Two novel and simple approaches to N-triflyl guanidines are elaborated. Owing to very strong conjugation the formally double C=N bond of TIN=C(NHR)(2) is longer than the formally single N-C bonds. Energetic effect of the triflylgroup on the conjugation in the N-C=N moiety is estimated to be >= 150 kcal/mol.},
  language  = {en}
}
@article{ShainyanSuslovaSchilde2008,
  author    = {Shainyan, Bagrat A. and Suslova, Elena N. and Schilde, Uwe},
  title     = {Crystal structures and theoretical calculations of trans -2,4,4-trimethyl-4-silathiane 1-oxide and 4,4-dimethyl- 4-silathiane 1,1-dioxide},
  issn      = {1040-0400},
  year      = {2008},
  abstract  = {The crystal and molecular structures of trans-2,4,4-trimethyl-4-silathiane 1-oxide 1 and 4,4-dimethyl-4- silathiane 1,1-dioxide 2 were determined by single crystal X-ray diffraction. Both compounds have the chair conformation with the 2-Me and the S=O group in compound 1 occupying the equatorial positions. The DFT (B3LYP/6-311G(d,p)) and MP2 (MP2/6-311G(d,p)) theoretical calculations nicely reproduce the X-ray experimental geometry. The obtained results are discussed in connection with the electronic and structural properties of the compounds.},
  language  = {en}
}
@article{ShainyanMoskalikAstakhovaetal.2014,
  author    = {Shainyan, Bagrat A. and Moskalik, Mikhail Yu and Astakhova, Vera V. and Schilde, Uwe},
  title     = {Novel design of 3,8-diazabicyclo[3.2.1]octane framework in oxidative sulfonamidation of 1,5-hexadiene},
  series = {Tetrahedron},
  volume    = {70},
  journal   = {Tetrahedron},
  number    = {30},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0040-4020},
  doi       = {10.1016/j.tet.2014.04.095},
  pages     = {4547 -- 4551},
  year      = {2014},
  abstract  = {1,5-Hexadiene reacts with trifluoromethanesulfonamide in the oxidative system (t-BuOCl+Nal) to give trans-2,5-bis(iodomethyl)-1-(trifluoromethylsulfonyl)pyrrolidine 5 and 3,8-bis(trifluoromethylsulfonyl)-3,8-diazabicyclo[3.2.1]octane 6. With arenesulfonamides ArSO2NH2 (Ar=Ph, Tol), the reaction stops at the formation of the trans and cis isomers of 2,5-bis(iodomethyl)-1-(arenesulfonyl)pyrrolidine 7 and 8 (1:1). The cis isomers of 7 and 8 do not undergo cyclization to the corresponding 3,8-disubstituted 3,8-diazabicyclo[3.2.1]octanes. The reaction with triflamide represents the first example of one-pot two-step route to 3,8-diazabicyclo[3.2.1]octane system. (C) 2014 Elsevier Ltd. All rights reserved.},
  language  = {en}
}
@article{ShainyanMoskalikStarkeetal.2010,
  author    = {Shainyan, Bagrat A. and Moskalik, Mikail Yu and Starke, Ines and Schilde, Uwe},
  title     = {Formation of unexpected products in the attempted aziridination of styrene with trifluoromethanesulfonyl nitrene},
  issn      = {0040-4020},
  doi       = {10.1016/j.tet.2010.08.070},
  year      = {2010},
  abstract  = {The reaction of styrene with trifluoromethanesulfonyl nitrene generated from trifluoromethanesulfonamide in the system (t-BuOCl+NaI) results in the formation of trifluoro-N-[2-phenyl-2-(trifluoromethylsulfonyl) aminoethyl]methanesulfonamide, 1-pheny1-2-iodo-ethanol, and 2,5-diphenyl-1,4-bis(trifluoromethyl sulfonyl)piperazine rather than the expected product of aziridination, 2-phenyl-1-(trifluoromethylsulfonyl) aziridine. The mechanism of the reaction is discussed.},
  language  = {en}
}
@article{ShainyanMeshcheryakovSterkhovaetal.2008,
  author    = {Shainyan, Bagrat A. and Meshcheryakov, Vladimir I. and Sterkhova, I. V. and Kelling, Alexandra and Schilde, Uwe},
  title     = {Structure of the molecule of 1,2-bis(1-ethyl-1 H -1,2,3-triazol-4-yl)diazene 1-oxide in the crystal and in solutions},
  issn      = {1070-4280},
  year      = {2008},
  abstract  = {Reduction of 4-nitro-1-ethyl-1H-1,2,3-triazole with aluminum in alkaline medium resulted in a syn-isomer of 1,2- bis(1-ethyl-1H-1,2,3-triazol-4-yl)diazene 1-oxide. The latter according to the data of X-ray diffraction analysis existed in the crystal as the most stable s-cis,s-trans-conformer, and in solution, as showed NMR data, as a mixture of s-cis,s-trans- and s-trans,s-trans-conformers. The data of quantum-chemical calculations are in agreement with the results of the structural studies.},
  language  = {en}
}
@article{SetoMaDavisetal.2012,
  author    = {Seto, Jong and Ma, Yurong and Davis, Sean A. and Meldrum, Fiona and Gourrier, Aurelien and Kim, Yi-Yeoun and Schilde, Uwe and Sztucki, Michael and Burghammer, Manfred and Maltsev, Sergey and J{\"a}ger, Christian and C{\"o}lfen, Helmut},
  title     = {Structure-property relationships of a biological mesocrystal in the adult sea urchin spine},
  series = {Proceedings of the National Academy of Sciences of the United States of America},
  volume    = {109},
  journal   = {Proceedings of the National Academy of Sciences of the United States of America},
  number    = {10},
  publisher = {National Acad. of Sciences},
  address   = {Washington},
  issn      = {0027-8424},
  doi       = {10.1073/pnas.1109243109},
  pages     = {3699 -- 3704},
  year      = {2012},
  abstract  = {Structuring overmany length scales is a design strategy widely used in Nature to create materials with unique functional properties. We here present a comprehensive analysis of an adult sea urchin spine, and in revealing a complex, hierarchical structure, showhow Nature fabricates a material which diffracts as a single crystal of calcite and yet fractures as a glassy material. Each spine comprises a highly oriented array of Mg-calcite nanocrystals in which amorphous regions and macromolecules are embedded. It is postulated that this mesocrystalline structure forms via the crystallization of a dense array of amorphous calcium carbonate (ACC) precursor particles. A residual surface layer of ACC and/or macromolecules remains around the nanoparticle units which creates the mesocrystal structure and contributes to the conchoidal fracture behavior. Nature's demonstration of howcrystallization of an amorphous precursor phase can create a crystalline material with remarkable properties therefore provides inspiration for a novel approach to the design and synthesis of synthetic composite materials.},
  language  = {en}
}
@article{SchwarzeTraegerKellingetal.2013,
  author    = {Schwarze, Thomas and Traeger, Juliane and Kelling, Alexandra and Schilde, Uwe and Holdt, Hans-J{\"u}rgen},
  title     = {Macrocyclic dithiomaleonitriles for an efficient PdCl2 coordination},
  series = {Inorganica chimica acta : the international inorganic chemistry journal},
  volume    = {408},
  journal   = {Inorganica chimica acta : the international inorganic chemistry journal},
  number    = {2},
  publisher = {Elsevier},
  address   = {Lausanne},
  issn      = {0020-1693},
  doi       = {10.1016/j.ica.2013.08.020},
  pages     = {53 -- 58},
  year      = {2013},
  abstract  = {We have synthesized a set of new unsaturated macrocyclic dithioethers with an increasing number of flexible methylene units 1-7 (Scheme 2) to investigate the correlation between the ring size of these ligands, the chelation effect and the consequences for an efficient PdCl2 coordination. The dithioethers 1-7 and the complex [PdCl2(4)]center dot CHCl3 were characterized by X-ray diffraction analysis. The crystal structures of 1-7 show that 2-7 are better preorganized chelating ligands for an exocyclic PdCl2 coordination than 1. The chelation effect of 1-7, the orientation of the sulfur atoms and the S center dot center dot center dot S donor distances, are influenced by the flexibility of the methylene units. In this series the unsaturated macrocyclic ligands 5 and 6 are the best chelating ligands for an efficient PdCl2 coordination. Comparative solvent extraction experiments with mn-12S(2)O(2) (mn = maleonitrile) reveal that the low interface activity of the new ligands reduces the extraction rate. However, a comparison with open-chain dithiomaleonitriles shows the impact of the macrocyclic effect of 4 and 5 on the extraction yield.},
  language  = {en}
}
@article{SchmidtWernerKellingetal.2010,
  author    = {Schmidt, Bernd and Werner, Frank and Kelling, Alexandra and Schilde, Uwe},
  title     = {The reaction of 3,4-dihydro-2H-pyran with oxalyl chloride : formation and crystal structure analysis of an unexpected bicyclic product},
  issn      = {0022-152X},
  year      = {2010},
  abstract  = {3,4-Dihydro-2-H-pyran and oxalyl chloride react, depending on the conditions, to keto esters, a pyran-3- carboxylic acid or derivatives thereof, or to an hitherto unknown bicyclic acetal containing a vinyl chloride moiety. The structure of the latter product has been unambiguously elucidated by single-crystal X-ray structure analysis. A mechanism for its formation is proposed.},
  language  = {en}
}
@article{SchmidtStaudeKellingetal.2011,
  author    = {Schmidt, Bernd and Staude, Lucia and Kelling, Alexandra and Schilde, Uwe},
  title     = {A Cross-Metathesis-Conjugate addition route to enantiopure gamma-Butyrolactams and gamma-Lactones from a C-2-Symmetric Precursor},
  series = {European journal of organic chemistry},
  journal   = {European journal of organic chemistry},
  number    = {9},
  publisher = {Wiley-Blackwell},
  address   = {Malden},
  issn      = {1434-193X},
  doi       = {10.1002/ejoc.201001528},
  pages     = {1721 -- 1727},
  year      = {2011},
  abstract  = {A protected derivative of (3R, 4R)-hexa-1,5-diene-3,4-diol, a conveniently accessible C-2-symmetric building block, undergoes single or double cross metathesis with methyl acryl-ate. The cross metathesis products are amenable to stereoselective conjugate addition reactions and can be converted into either gamma-butyrolactones or gamma-lactams.},
  language  = {en}
}
@article{SchmidtRiemerSchilde2014,
  author    = {Schmidt, Bernd and Riemer, Martin and Schilde, Uwe},
  title     = {Chroman-4-ones via microwave-promoted domino claisen rearrangement-oxa-michael addition: Synthesis of tabchromones A and B},
  series = {Synlett : accounts and rapid communications in synthetic organic chemistry},
  volume    = {25},
  journal   = {Synlett : accounts and rapid communications in synthetic organic chemistry},
  number    = {20},
  publisher = {Thieme},
  address   = {Stuttgart},
  issn      = {0936-5214},
  doi       = {10.1055/s-0034-1379364},
  pages     = {2943 -- 2946},
  year      = {2014},
  abstract  = {Allyl phenyl ethers with a pendant enone substituent undergo, upon microwave irradiation, a domino sequence of Claisen rearrangement and 6-endo-trig-cyclization to furnish functionalized chroman-4-ones. The natural products tabchromones A and B were synthesized via this method.},
  language  = {en}
}
@article{SchmidtRiemerSchilde2015,
  author    = {Schmidt, Bernd and Riemer, Martin and Schilde, Uwe},
  title     = {Tandem Claisen Rearrangement/6-endo Cyclization Approach to Allylated and Prenylated Chromones},
  series = {European journal of organic chemistry},
  journal   = {European journal of organic chemistry},
  number    = {34},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1434-193X},
  doi       = {10.1002/ejoc.201501151},
  pages     = {7602 -- 7611},
  year      = {2015},
  abstract  = {Allyl, dimethylallyl and prenyl ethers derived from o-acyl-phenols reacted upon microwave irradiation to form C-allylated or -prenylated chromone derivatives, depending on the substitution pattern of the arene and the allyl substituent. The reaction proceeds through a tandem Claisen rearrangement and 6-endo-trig or 6-endo-dig cyclization sequence. For prenyl ethers, the tandem sequence can be extended by a Cope rearrangement to furnish 6-prenylchromones. The method is potentially useful for the synthesis of natural products and drugs.},
  language  = {en}
}
@article{SchmidtKrehlKellingetal.2012,
  author    = {Schmidt, Bernd and Krehl, Stefan and Kelling, Alexandra and Schilde, Uwe},
  title     = {Synthesis of 8-Aryl-Substituted Coumarins based on Ring-Closing Metathesis and Suzuki-Miyaura coupling - synthesis of a Furyl Coumarin natural product from Galipea panamensis},
  series = {The journal of organic chemistry},
  volume    = {77},
  journal   = {The journal of organic chemistry},
  number    = {5},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0022-3263},
  doi       = {10.1021/jo2026564},
  pages     = {2360 -- 2367},
  year      = {2012},
  abstract  = {The synthesis of 7-methoxy-8-(4-methyl-3-furyl)-2H-chromen-2-one, a natural product with antileishmanial activity recently isolated from the plant Galipea panamensis, is described. The key step is a Suzuki-Miyaura coupling of a furan-3-boronic acid and an 8-halocoumarin, which is advantageously synthesized using a ring-closing metathesis reaction. Several non-natural analogues are also available along these lines.},
  language  = {en}
}
@article{SchmidtElizarovSchildeetal.2015,
  author    = {Schmidt, Bernd and Elizarov, Nelli and Schilde, Uwe and Kelling, Alexandra},
  title     = {Dual Role of Acetanilides: Traceless Removal of a Directing Group through Deacetylation/Diazotation and Palladium-Catalyzed C-C-Coupling Reactions},
  series = {The journal of organic chemistry},
  volume    = {80},
  journal   = {The journal of organic chemistry},
  number    = {9},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0022-3263},
  doi       = {10.1021/acs.joc.5b00272},
  pages     = {4223 -- 4234},
  year      = {2015},
  abstract  = {The acetamide group enables regioselective oxidative ortho-C-H activation reactions, such as Pd-catalyzed acylation. The synthetic utility of these transformations can be significantly enhanced by using the acetamide as a quasi-leaving group in a subsequent conventional Pd-catalyzed coupling or cross-coupling reaction. The concept is illustrated herein for the synthesis of o-alkenyl- and o-arylphenones, which have potential for the synthesis of arylated aromatic heterocycles.},
  language  = {en}
}
@article{SchmidtBergerKellingetal.2011,
  author    = {Schmidt, Bernd and Berger, Ren{\´e} and Kelling, Alexandra and Schilde, Uwe},
  title     = {Pd-Catalyzed [2+2+1] coupling of alkynes and arenes phenol diazonium salts as mechanistic trapdoors},
  series = {Chemistry - a European journal},
  volume    = {17},
  journal   = {Chemistry - a European journal},
  number    = {25},
  publisher = {Wiley-Blackwell},
  address   = {Malden},
  issn      = {0947-6539},
  doi       = {10.1002/chem.201100609},
  pages     = {7032 -- 7040},
  year      = {2011},
  abstract  = {Alkynes and phenol diazonium salts undergo a Pd-catalyzed [2+2+1] cyclization reaction to spiro[4,5]decatetraene-7-ones. This structure was confirmed for one example by X-ray single-crystal structure analysis. The reaction is believed to proceed through oxidative addition of the phenol diazonium cation to Pd(0), subsequent insertion of two alkynes, followed by irreversible spirocyclization.},
  language  = {en}
}
@article{SchildePoleschner1996,
  author    = {Schilde, Uwe and Poleschner, Helmut},
  title     = {The first structure of a vicinal (E)-Fluoroselenoolefin: (E)-(5-Fluoro-4-octen-4-yl)dimethylselenonium Picrate},
  year      = {1996},
  language  = {en}
}
@article{SchildePazOrtiz2017,
  author    = {Schilde, Uwe and Paz, Christian and Ortiz, Leandro},
  title     = {Crystal structure of erioflorin isolated from Podanthus mitiqui (L.)},
  series = {Acta Crystallographica Section E : Crystallographic Communications},
  volume    = {73},
  journal   = {Acta Crystallographica Section E : Crystallographic Communications},
  number    = {3},
  publisher = {International Union of Crystallography},
  address   = {Chester},
  doi       = {10.1107/S2056989017001700},
  pages     = {334 -- 337},
  year      = {2017},
  abstract  = {The title compound, erioflorin, C19H24O6 [systematic name: (1aR,3S,4Z,5aR,8aR,9R,10aR)-1a, 2,3,5a, 7,8,8a, 9,10,10a-decahydro-3-hydroxy-4,10a-dimethyl-8-methylidene-7-oxooxireno[5,6] cyclodeca[1,2-b]furan-9-yl methacrylate], is a tricyclic germacrane sesquiterpene lactone, which was isolated from Podanthus mitiqui (L.). The compound crystallizes in the space group P2(1)2(1)2(1), and its molecular structure consists of a methacrylic ester of a ten-membered ring sesquiterpenoid annelated with an epoxide and a butyrolactone. The structure is stabilized by one intramolecular C-H center dot center dot center dot O hydrogen bond. An O-H center dot center dot center dot O hydrogen bond and further C-H center dot center dot center dot O interactions can be observed in the packing.},
  language  = {en}
}
@misc{SchildePazOrtiz2017,
  author    = {Schilde, Uwe and Paz, Christian and Ortiz, Leandro},
  title     = {Crystal structure of erioflorin isolated from Podanthus mitiqui (L.)},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-401832},
  pages     = {4},
  year      = {2017},
  abstract  = {The title compound, erioflorin, C19H24O6 [systematic name: (1aR,3S,4Z,5aR,8aR,9R,10aR)-1a, 2,3,5a, 7,8,8a, 9,10,10a-decahydro-3-hydroxy-4,10a-dimethyl-8-methylidene-7-oxooxireno[5,6] cyclodeca[1,2-b]furan-9-yl methacrylate], is a tricyclic germacrane sesquiterpene lactone, which was isolated from Podanthus mitiqui (L.). The compound crystallizes in the space group P2(1)2(1)2(1), and its molecular structure consists of a methacrylic ester of a ten-membered ring sesquiterpenoid annelated with an epoxide and a butyrolactone. The structure is stabilized by one intramolecular C-H center dot center dot center dot O hydrogen bond. An O-H center dot center dot center dot O hydrogen bond and further C-H center dot center dot center dot O interactions can be observed in the packing.},
  language  = {en}
}
@article{SchildeMicklerUhlemann1997,
  author    = {Schilde, Uwe and Mickler, Wulfhard and Uhlemann, Erhard},
  title     = {Crystal structure of bis(1-phenyl-5-cyclohexyl-pentane-1,3-dionato-copper(II)},
  issn      = {0044-2968},
  year      = {1997},
  language  = {en}
}
@article{SchildeKellingUmbreenetal.2016,
  author    = {Schilde, Uwe and Kelling, Alexandra and Umbreen, Sumaira and Linker, Torsten},
  title     = {Crystal structures of three bicyclic carbohydrate derivatives},
  series = {Acta crystallographica Section E ; Crystallographic communications},
  volume    = {72},
  journal   = {Acta crystallographica Section E ; Crystallographic communications},
  number    = {12},
  publisher = {IUCR},
  address   = {Chester},
  issn      = {2056-9890},
  doi       = {10.1107/S2056989016018727},
  pages     = {1839 -- 1844},
  year      = {2016},
  abstract  = {The title compounds, [(1R,3R,4R,5R,6S)-4,5-bis(acetyloxy)-7-oxo-2-oxabicyclo- [4.2.0]octan-3-yl]methyl acetate, C14H18O8, (I), [(1S,4R,5S,6R)-5-acetyloxy-7- hydroxyimino-2-oxobicyclo[4.2.0]octan-4-yl acetate, C11H15NO6, (II), and [(3aR,5R,6R,7R,7aS)-6,7-bis(acetyloxy)-2-oxooctahydropyrano[3,2-b]pyrrol-5- yl]methyl acetate, C14H19NO8, (III), are stable bicyclic carbohydrate derivatives. They can easily be synthesized in a few steps from commercially available glycals. As a result of the ring strain from the four-membered rings in (I) and (II), the conformations of the carbohydrates deviate strongly from the ideal chair form. Compound (II) occurs in the boat form. In the five-membered lactam (III), on the other hand, the carbohydrate adopts an almost ideal chair conformation. As a result of the distortion of the sugar rings, the configurations of the three bicyclic carbohydrate derivatives could not be determined from their NMR coupling constants. From our three crystal structure determinations, we were able to establish for the first time the absolute configurations of all new stereocenters of the carbohydrate rings.},
  language  = {en}
}
@misc{SchildeKellingUmbreenetal.2016,
  author    = {Schilde, Uwe and Kelling, Alexandra and Umbreen, Sumaira and Linker, Torsten},
  title     = {Crystal structures of three bicyclic carbohydrate derivatives},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-100833},
  pages     = {6},
  year      = {2016},
  abstract  = {The title compounds, [(1R,3R,4R,5R,6S)-4,5-bis­(acet­yloxy)-7-oxo-2-oxabi­cyclo[4.2.0]octan-3-yl]methyl acetate, C14H18O8, (I), [(1S,4R,5S,6R)-5-acet­yloxy-7-hy­droxy­imino-2-oxobi­cyclo­[4.2.0]octan-4-yl acetate, C11H15NO6, (II), and [(3aR,5R,6R,7R,7aS)-6,7-bis­(acet­yloxy)-2-oxo­octa­hydro­pyrano[3,2-b]pyrrol-5-yl]methyl acetate, C14H19NO8, (III), are stable bicyclic carbohydrate derivatives. They can easily be synthesized in a few steps from commercially available glycals. As a result of the ring strain from the four-membered rings in (I) and (II), the conformations of the carbohydrates deviate strongly from the ideal chair form. Compound (II) occurs in the boat form. In the five-membered lactam (III), on the other hand, the carbohydrate adopts an almost ideal chair conformation. As a result of the distortion of the sugar rings, the configurations of the three bicyclic carbohydrate derivatives could not be determined from their NMR coupling constants. From our three crystal structure determinations, we were able to establish for the first time the absolute configurations of all new stereocenters of the carbohydrate rings.},
  language  = {en}
}