Premium
The mesomorphism of some diamides of alkyl‐substituted‐1,3‐Diaminobenzene
Author(s) -
Malehete Jacques,
Levelut AnneMarie,
Liebert Lionel
Publication year - 1992
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19920040108
Subject(s) - mesogen , alkyl , materials science , liquid crystal , hydrogen bond , phase (matter) , crystallography , diffraction , liquid crystalline , organic chemistry , molecule , chemistry , optics , physics , optoelectronics
The mesophases of several oddly shaped mesogenic diamides of 1,3‐diaminobenzene, substituted with three methyl groups in positions 2,4,6 or by a methyl and a tert‐butyl group in positions 2,5 have been studied by X‐ray diffraction. Limello‐columnar and uncommon nematic mesomorphic ordering have been observed and the role of hydrogen bonding in the phase behavior investigated.