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Synthesis and Mesomorphic Properties of Mesogens Containing Tetrafluorobiphenyl Carboxylate Groups
Author(s) -
Chen XiMm,
Wang Kan,
Li HengFeng,
Liu KeGang,
Wen JianXun
Publication year - 2001
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200100171
Subject(s) - chemistry , carboxylate , alkoxy group , bromine , trifluoromethyl , nitro , crystallography , group (periodic table) , chlorine , fluorine , chlorine atom , medicinal chemistry , organic chemistry , polymer chemistry , alkyl
Six series of 4–4′‐ n ‐alkoxy‐2′,3′,5′,6′‐tetrafluorobiphenyl carboxylate esters have been synthesized. Their mesomorphic properties were investigated and measured by optical polarizing microscopy and DSC. The results show that tar get compounds bearing a nitro group as terminal group exhibit wide mesophases. However, their terminal groups are trifluoromethyl, fluorine atoms, chlorine atoms, bromine atoms and hydrogen atoms, which aren't mesogens.