TY - THES A1 - Weißenberger, Markus Christian T1 - Nanocasting : eine Methode zum gezielten Aufbau strukturierter Materie Y1 - 1997 CY - Teltow ER - TY - THES A1 - Wandrey, Christine T1 - Polyelektrolyte : makromolekulare Parameter und Elektrolytverhalten Y1 - 1997 SN - 3-89588-814-1 PB - Cuvillier CY - Göttingen ER - TY - BOOK A1 - Bechmann, Wolfgang T1 - Neue Cocktails nur mit bewährten Rezepten? : Beiträge zur Aufklärung hemerober Geosysteme T3 - Stoffdynamik in Geosystemen Y1 - 1997 VL - 2 PB - Selbstverl. der Arbeitsgruppe Stoffdynamik in Geosystemen CY - Potsdam ER - TY - THES A1 - Vorwerg, Lars T1 - Elektrokinetische Untersuchungen an Modellkolloiden zur Beurteilung ihrer Stabilität Y1 - 1997 CY - Teltow ER - TY - JOUR A1 - Koetz, Joachim A1 - Brühl, Iris A1 - Kosmella, Sabine T1 - Polyelektrolytkomplexbildung in lyotrop flüssigkristallinen Systemen Y1 - 1997 SN - 3-8265-2908-1 ER - TY - JOUR A1 - Koetz, Joachim T1 - Mesoskopisch organisierte Polymer-Tensid Systeme Y1 - 1997 ER - TY - JOUR A1 - Koetz, Joachim A1 - Beitz, Toralf T1 - The phase behaviour of polyanion-polycation systems Y1 - 1997 ER - TY - JOUR A1 - Ruppelt, Dirk A1 - Koetz, Joachim A1 - Jaeger, Werner A1 - Friberg, Stig E. A1 - Mackay, R. A. T1 - The influence of cationic polyelectrolytes on structure formation in lamellar liquid crystalline systems Y1 - 1997 ER - TY - JOUR A1 - Parker, Sylvia A1 - Kulicke, Werner-Michael A1 - Böhm, Nicolai A1 - Koetz, Joachim A1 - Jaeger, Werner T1 - Flockung und Entwässerung von Klärschlamm mit Hilfe von Polyelektrolyten Y1 - 1997 ER - TY - JOUR A1 - Schuster, Ch. A1 - Koetz, Joachim A1 - Kulicke, Werner-Michael A1 - Parker, Sylvia A1 - Böhm, Nicolai A1 - Jaeger, Werner T1 - Das Entwässerungsverhalten von Klärschlamm in Gegenwart von Polyelektrolyten Y1 - 1997 ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Schubert, Oswald A1 - Bechmann, Wolfgang A1 - Bukowsky, Heinz A1 - Dautz, J. A1 - Kapp, Ingo A1 - Knösche, Rüdiger A1 - Portmann, Hans-Dieter A1 - Schachtzabel, Hartmut A1 - Schneider, Ingo A1 - Tessmann, Joachim T1 - Erste Ergebnisse einer Fallstudie zur Stoffdynamik naturschutzrelevanter Böden der Döberitzer Heide Y1 - 1997 ER - TY - JOUR A1 - Zülicke, Lutz A1 - Ragnetti, Francesca A1 - Neumann, Rainer T1 - Ionized Van-der-Waals systems : structure and interactions Y1 - 1997 ER - TY - JOUR A1 - Mahapatra, Susanta A1 - Vetter, Reinhard A1 - Zuhrt, Christian A1 - Nguyen, Huu Tong A1 - Ritschel, Thomas A1 - Zülicke, Lutz T1 - Bound states and time-dependent dynamics of the N2H+ molecular ion in its ground electronic state. I. 2D treatment Y1 - 1997 ER - TY - JOUR A1 - Gianturco, Franco A. A1 - Kumar, Sanjay A1 - Vetter, Reinhard A1 - Ritschel, Thomas A1 - Zülicke, Lutz T1 - Interaction anisotropy and vibrational excitation in proton scattering from N2(1sigma g+) Y1 - 1997 ER - TY - BOOK A1 - Ritschel, Thomas A1 - Mahapatra, Susanta A1 - Zülicke, Lutz T1 - Classical trajectory calculations for inelastic scattering of protons by N2 Molecules T3 - Technical Report / Institute of Physical and Theoretical Chemistry, Potsdam Y1 - 1997 VL - 1997, 01 PB - Univ. CY - Potsdam ER - TY - THES A1 - Henke, Susanne T1 - Nanostrukturierte Hybridmaterialien durch Flüssigkristalltemplierung in der Sol-Gel Synthese Y1 - 1997 CY - Potsdam ER - TY - JOUR A1 - Koetz, Joachim T1 - Self-assembled polymer-surfactant systems Y1 - 1997 ER - TY - THES A1 - Oestreich, Sascha T1 - Amphiphile Blockcopolymere : Synthese, Strukturbildung und Anwendung Y1 - 1997 CY - Teltow ER - TY - JOUR A1 - Koetz, Joachim A1 - Kosmella, Sabine T1 - Polymers in lyotropic liquid crystalline systems Y1 - 1997 SN - 0927-7757 ER - TY - JOUR A1 - Chapuisat, Xavier A1 - Saint-Espés, Cécile A1 - Zuhrt, Christian A1 - Zülicke, Lutz T1 - A weak-mode representation of floppy molecules. IV. Spectroscopic states of model HCN and CNH Y1 - 1997 ER - TY - JOUR A1 - Koetz, Joachim A1 - Bogen, Iris A1 - Heinze, Ute A1 - Heinze, Thomas A1 - Klemm, D. A1 - Lange, Silke A1 - Kulicke, Werner-Michael T1 - Kolloideigenschaften statistisch, blockartig und regioselektiv substituierter Carboxymethylcellulosen Y1 - 1998 SN - 0031-1340 ER - TY - JOUR A1 - Koetz, Joachim A1 - Plantenberg, Thomas T1 - Self-assembled polyanion-polycation systems Y1 - 1998 SN - 0-9585708-1-7 ER - TY - THES A1 - Richter, Bernd T1 - Selbstorganisierte Hetero-Mulitschichtstrukturen als elektrolumineszierende Bauelemente Y1 - 1998 CY - Potsdam ER - TY - THES A1 - Giersig, Michael T1 - Physikalisch-chemische Charakterisierung von kolloidalen Halbleiter- und Metallteilchen Y1 - 1998 CY - Potsdam ER - TY - THES A1 - Pfohl, Thomas T1 - Benetzen Alkane hydrophile Oberflächen flüssiger und fester Subtrate? Y1 - 1998 ER - TY - THES A1 - Wu, Yuling T1 - Syntheses of defined carbohydrate surfactants and determination of their wetting behaviour under equilibrium and dynamic conditions Y1 - 1998 ER - TY - THES A1 - Möller, Gunter Eric T1 - Untersuchung von Flüssig / Flüssig Elektrolytgrenzflächen mit optischen und elektrochemischen Methoden Y1 - 1998 CY - Potsdam ER - TY - THES A1 - Lochhaas, Kai Helmut T1 - Polyelektrolyt-Tensid-Komplexe mit fluor- und siliciumhaltigen Tensiden : Struktur und Eigenschaften Y1 - 1998 CY - Potsdam ER - TY - THES A1 - Neese, Martin T1 - Struktur und Dynamik von komplexen Modellfluiden : Mikrogele in der Schmelze Y1 - 1998 SN - 3-89712-181-6 PB - Cuvillier CY - Göttingen ER - TY - THES A1 - Micha, Marc Andre T1 - Strukturanalyse mikrophasenseparierter Systeme Y1 - 1998 ER - TY - THES A1 - Hentze, Hans-Peter T1 - Morphosynthesen von Polymeren in selbstorganisierten Medien : Polymerisationen in Mikroemulsionen und lyotropen Mesophasen Y1 - 1998 SN - 3-89712-148-4 PB - Cuvillier CY - Göttingen ER - TY - THES A1 - Pauck, Thilo T1 - Hydrodynamische Analyseverfahren zur Charakterisierung von Hybridkolloiden und Proteinen Y1 - 1998 SN - 3-89712-167-0 PB - Cuvillier CY - Göttingen ER - TY - THES A1 - Wilken, Ralph T1 - Untersuchungen zur Oberflächenmodifizierung ausgewählter Modellpolymere durch VUV-Photolyse Y1 - 1998 ER - TY - THES A1 - Dahmen-Levison, Ursula T1 - Enzymatische Reaktionen an Grenzflächen Y1 - 1998 ER - TY - THES A1 - Gröhn, Franziska T1 - Kugelförmige Polyelektrolyt-Mikrogele als Modell-Polyelektrolyte und Nanotemplate Y1 - 1998 CY - Potsdam ER - TY - THES A1 - Breulmann, Michael T1 - Biomimetrische Synthese von organisierter anorganischer Materie mit Polymertemplaten Y1 - 1998 SN - 3-89712-163-8 PB - Cuvillier CY - Göttingen ER - TY - JOUR A1 - Schneider, Ingo A1 - Mross, A. A1 - Bechmann, Wolfgang T1 - Der Einfluss einer permanenten Mineralölkohlenwasserstoff-Kontamination auf Bodenmikroorganismen in der Döberitzer Heide Y1 - 1998 ER - TY - JOUR A1 - Schuster, Ch. A1 - Koetz, Joachim T1 - Mechanismen der Flockung und Entwässerung von Klärschlamm in Gegenwart von Polyelektrolyten : [Abstract zum Vortrag auf der] 5. Mütek-Anwendertagung Papier, München, 7.11.1997 Y1 - 1998 ER - TY - JOUR A1 - Koetz, Joachim A1 - Kosmella, Sabine T1 - Polyelectrolyte complex formation with chitosan Y1 - 1998 ER - TY - JOUR A1 - Kosmella, Sabine A1 - Koetz, Joachim A1 - Shirahama, K. A1 - Liu, J. T1 - The cooperative nature of complex formation in mixed polyelectrolyte-surfactant systems Y1 - 1998 ER - TY - THES A1 - Senkel, Oliver T1 - Dynamische Eigenschaften von löslichen Tensid- und Proteinadsorptionsschichten an der Phasengrenze Wasser/ Luft nach isotroper Dilatation/Kompression der Grenzfläche Y1 - 1998 CY - Potsdam ER - TY - THES A1 - Vorberg, Kerstin T1 - Polyelektrolytadsorption an geladene Lipid-Monoschichten Y1 - 1998 ER - TY - THES A1 - Goedel, Werner Andreas T1 - Von Monoschichten verankerter Polymere zu freitragenden, gummielastischen Membranen Y1 - 1998 CY - Potsdam ER - TY - JOUR A1 - Mahapatra, Susanta A1 - Vetter, Reinhard A1 - Zuhrt, Christian A1 - Nguyen, Huu Tong A1 - Ritschel, Thomas A1 - Zülicke, Lutz T1 - Ground state potential energy surface, 3D time-dependent intramolecular dynamics and vibrational states of the N2H+ molecular ion Y1 - 1998 ER - TY - JOUR A1 - Kallies, Bernd A1 - Mitzner, Rolf T1 - Models of water-assisted hydrolyses of methyl formate, formamide, and urea from combined DFT-SCRF calculations N2 - In this work we present theoretical studies of the hydrolytic reaction of methyl formate, formamide and urea with one water molecule. The studied systems contain two additional water molecules which can act as bifunctional acid- base catalysts. These water molecules catalyze proton transfers between the primary reacting species. Our models describe the concerted transfer of two protons in every reaction step. The calculations have been carried out with the Becke3LYP/6-31G* method. Unspecific solvation effects have been included by means of a polarizable continuum model. Substrate reactivity differences as well as preferences for different reaction pathways can be discussed with the aid of these molecular systems. The studied alternative mechanisms include the common addition-elimination mechanism via a tetrahedral intermediate, and a concerted SN-like mechanism without a reaction intermediate. Our results suggest that the proved decreasing substrate reactivity in the order ester, amide, urea is caused by a rising resonance stabilization of the reaction centre, and not by a different positive partial charge of the carbonyl carbon. It is also concluded, that the probability of a concerted addition of a nucleophile and elimination of a leaving group without a tetrahedral intermediate rises in the order ester, amide, urea. The ordering of reactivity is not influenced by this behaviour. Y1 - 1998 ER - TY - JOUR A1 - Beitz, Toralf A1 - Bechmann, Wolfgang A1 - Mitzner, Rolf T1 - Investigations of reactions of selected Azaarenes with radicals in water, 2. Chlorine and Bromine radicals Y1 - 1998 ER - TY - JOUR A1 - Kallies, Bernd A1 - Mitzner, Rolf T1 - Structural Properties of Protonated Acyl Derivatives as Studied by Quantum Mechanics N2 - Basicities of 16 acyl compounds including selected aldehydes, ketones, esters, amides and ureas in the gas phase and in water were calculated with the Becke3LYP/6-31G* method. Solvent effects were modeled using a polarizable electrostatic continuum representation of the solvent. The properties of the electron densities of protonated molecules were described by localized bond orbitals. Our results suggest that the carbonyl oxygen is the preferred site of protonation for all molecules studied. Calculated pKa values in water range from -12 for aldehydes to + 1.5 for ureas. They agree well with published experimental data. We found that a high basicity of acyl compounds at the carbonyl oxygen is coupled with a large amount of additional resonance stabilization at the carbonyl group. The protonation of the leaving group of eaters, amides and ureas is less preferred, but the basicity difference between C=O and -OR or -NR2 decreases from esters to ureas. Calculated pKa values for this site range from -18 for esters to + 3 for ureas. These values are often not accessible by experiment. The structure of carboxylic acid derivatives protonated at the leaving group is determined by prefragmentation of the molecules into an acylium ion or positively charged isocyanate and an alcohol or amine. (C) 1998 Elsevier Science B.V. Y1 - 1998 ER - TY - JOUR A1 - Beitz, Toralf A1 - Bechmann, Wolfgang A1 - Mitzner, Rolf T1 - Investigations of reactions of selected Azaarenes with radicals in water, 1. Hydroxyl and sulfate radicals Y1 - 1998 ER - TY - THES A1 - Henning, Thorsten T1 - Physikochemische Charakterisierung von rekonstituiertem und partiell tryptisch hydrolysiertem 11S-Globulin ("Legumin") der Ackerbohne Y1 - 1998 ER - TY - JOUR A1 - Bechthold, Nina A1 - Tiersch, Brigitte A1 - Koetz, Joachim A1 - Friberg, Stig E. T1 - Structure Formation in polymer-modified liquid crystals Y1 - 1999 ER -