TY  - JOUR
A1  - Müller, Holger
A1  - Kelling, Alexandra
A1  - Schilde, Uwe
A1  - Holdt, Hans-Jürgen
T1  - Ag(I)-, Hg(II)- und Pt(II)-Komplexe von Maleonitril-thiakronenethern
BT  - Silber(II)-, Quecksilber(II)- und Platin(II)-Komplexe von Maleonitril-thiakronenethern
N2  - The synthesis and single crystal X-ray structures of eight AgI, HgII, and PtII complexes with the thiacrown ethers maleonitrile-tetrathia-12-crown-4 (mn12S4), maleonitrile-tetrathia-13-crown-4 (mn13S4), and maleonitrile- pentathia-15-crown-5 (mn15S5) (1) are reported. The ligand mn15S5 was synthesized for the first time and characterized by X-ray diffraction. With silver(I) perchlorate and silver(I) tetrafluoroborate it forms the chiral complexes [Ag(mn15S5)]ClO4·CH3NO2 (2) and [Ag(mn15S5)]BF4·CH3NO2·0.25H2O (3) with half-sandwich moieties. AgI is located in a distorted tetrahedral coordination environment, involving three sulfur atoms of the crown cycle and a fourth one of the adjacent half-sandwich moiety, forming a helical structure. The reaction of Hg(ClO4)2 with mn13S4 yielded the dinuclear complex [Hg2(mn13S4)3](ClO4)4 (4) containing two half-sandwich moieties with a third ligand molecule as a bridging unit. Mercury(II) chloride and mercury(II) iodide react with mn12S4 and mn13S4 to form complexes of the general composition [HgX2(L)] (X = Cl, I; L = mn12S4, mn13S4): [HgCl2(mn12S4)] (5), [HgI2(mn12S4)] (6), [HgCl2(mn13S4)] (7) or [HgX2(L)2] (X = I; L = mn13S4): [HgI2(mn13S4)2] (8). Only one or two sulfur atoms of the ligand are involved in the complexation, and chain or ribbon structures are formed. In these compounds the HgX2 units (X = Cl, I) are preserved, coordinated by sulfur atoms of bridging mn12S4 or mn13S4 ligands. In all complexes of this type, the metal atoms are not coordinated inside the cavity, but in an exocyclic mode, because the diameter of the macrocycle is too small. Additionally, the PtCl2 complex of mn12S4 was investigated, where PtII is coordinated in an exocyclic mode forming the complex [PtCl2(mn12S4)] (9). Two of the four sulfur atoms of the macrocycle are bonded to the metal giving together with both chlorine atoms a square-planar coordination geometry. Together with a long-range interaction with a further sulfur atom of the macrocycle a square-pyramidal coordination environment is formed.
Y1  - 2009
UR  - http://www.znaturforsch.com/rb/s64b1003.pdf
SN  - 0932-0776
ER  - 
TY  - THES
A1  - Elamparuthi, Elangovan
A1  - Linker, Torsten
A1  - Kelling, Alexandra
A1  - Schilde, Uwe
T1  - Crystal structure of methyl 3,4,6-tri-O-benzyl-2-deoxy-2-C-nitromethyl-beta-D-galactopyranoside, C29H33NO7
Y1  - 2009
UR  - http://www.oldenbourg.de/verlag/zkristallogr/mn-ncsc.htm
U6  - https://doi.org/10.1524/ncrs.2009.0054
SN  - 1433-7266
ER  - 
TY  - JOUR
A1  - Elamparuthi, Elangovan
A1  - Linker, Torsten
A1  - Kelling, Alexandra
A1  - Schilde, Uwe
T1  - Crystal structure of methyl 3,4-di-O-benzyl-2-deoxy-2-C-nitromethyl-alpha-D-arabinopyranoside, C21H25NO6
Y1  - 2009
UR  - http://www.oldenbourg.de/verlag/zkristallogr/mn-ncsc.htm
U6  - https://doi.org/10.1524/ncrs.2009.0027
SN  - 1433-7266
ER  -