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Smectic Liquid Crystals from Supramolecular Guanidinium Alkylbenzenesulfonates
Author(s) -
Mathevet Fabrice,
Masson Patrick,
Nicoud JeanFrançois,
Skoulios Antoine
Publication year - 2002
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/1521-3765(20020517)8:10<2248::aid-chem2248>3.0.co;2-b
Subject(s) - thermotropic crystal , differential scanning calorimetry , supramolecular chemistry , crystallography , homologous series , polymorphism (computer science) , liquid crystal , infrared spectroscopy , ionic bonding , materials science , ionic liquid , chemistry , crystal structure , ion , organic chemistry , liquid crystalline , biochemistry , physics , optoelectronics , gene , genotype , thermodynamics , catalysis
A homologous series of guanidinium alkylbenzenesulfonates from ethyl to tetradecyl were synthesized and characterised. Their thermotropic polymorphism was investigated by polarizing optical microscopy, differential scanning calorimetry, and dilatometry. The structure of the smectic liquid crystal phases obtained at high temperature with the compounds from octyl to tetradecyl was analysed by X‐ray diffraction. The supramolecular assembling of the ionic species inside the smectic layers was investigated by infrared spectroscopy.