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Liquid Crystal Imidazolium Salts: Towards Materials for Catalysis and Molecular Electronics
Author(s) -
Suisse JeanMoïse,
Douce Laurent,
BelleminLaponnaz Stéphane,
MaisseFrançois Aline,
Welter Richard,
Miyake Yasuo,
Shimizu Yo
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700251
Subject(s) - mesophase , differential scanning calorimetry , lamellar structure , liquid crystal , alkyl , catalysis , chemistry , crystallography , phase (matter) , optical microscope , polymer chemistry , organic chemistry , materials science , scanning electron microscope , physics , thermodynamics , optoelectronics , composite material
1,3‐Bis(4‐alkyloxyphenyl)‐3 H ‐imidazol‐1‐ium trifluoromethanesulfonates, alkyl = CH 3 (CH 2 ) n –1 , n = 8, 10, 12, 14 and 16, can be derived from the analogous 4‐alkyloxyphenylamines. These imidazolium salts exhibit a lamellar liquid‐crystal mesophase between 99 °C and 191 °C. The smectic‐A phase was fully characterised by polarising optical microscopy, differential scanning calorimetry and X‐ray diffraction. We report also the synthesis, lamellar crystal structure and catalytic activity of the Pd II complex of the (deprotonated) carbene form of one of these salts. In addition, we measured the charged carrier mobilities in the mesophase.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)