Premium
Facile Synthesis of 1,2‐Diarylacetylene Compounds and Correlation between Their Structures and Physical Properties
Author(s) -
XinBing Chen,
ZhongWei An,
Lin Jia,
AiAi Gao
Publication year - 2005
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200590970
Subject(s) - mesophase , chemistry , alkyl , moiety , melting point , alkoxy group , chloride , differential scanning calorimetry , ketone , molecule , polymer chemistry , organic chemistry , thermodynamics , physics , phase (matter)
1,2‐Diarylacetylenes have been synthesized by a facile method consisting of an addition of diaryl ketone with acetyl chloride and the elimination of resultant ethene chloride. Correlation between physical properties and structure of the 1,2‐diarylacetylene has been studied by differential scanning calorimeter (DSC), refractor and electro‐optical parameter test instrument. The results show that birefringence was increased with inserting cyclohexyl into the skeleton, but mesophase range, melting and clearing points were reduced with introducing the ethylene bridge in the molecule, and birefringence, viscosity, clearing point and mesophase range could all be decreased with perfluoro alkyl/alkoxyl terminal instead of alkyl/alkoxyl moiety.