Influence of N??Alkyl Substituents and Counterions on the Structural and Mesomorphic Properties of Guanidinium Salts: Experiment and Quantum Chemical …

…, E Kessler, HU Siehl, B Claasen, P Fischer…

Index: Butschies, Martin; Sauer, Sven; Kessler, Elena; Siehl, Hans-Ullrich; Claasen, Birgit; Fischer, Peter; Frey, Wolfgang; Laschat, Sabine ChemPhysChem, 2010 , vol. 11, # 17 p. 3752 - 3765

Full Text: HTML

Citation Number: 18

Abstract

Abstract A series of N-4-(4′-alkoxybiphenyl)-N′, N′, N”, N “-tetramethylguanidinium salts was synthesized with varying alkoxy chain lengths and additional N-alkyl substituents, each with a number of different counterions. X-ray crystal-structure analyses of 1bI, 1bPF 6, 2aI, and 4aI reveal bilayer structures in the solid state and, for the 1b and 1b PF 6 salts, a hydrogen-bond-type connectivity between the guanidinium NH group and the anion is ...