16618-75-0Relevant academic research and scientific papers
The Synthesis and Liquid Crystal Behavior of p-Benzotrifluoride Compounds I
Liang, Jason C.,Kumar, Satyendra
, p. 77 - 84 (2007/10/02)
Three compounds with the R-X-Y-CF3 structure were synthesized where X is a trans cyclohexil ring.Y is a benzene ring and R is an alkyl group.The structure assignments were confirmed by carbon 13NMR and the compounds were purified by preparative liquid chromatography.The separation of cis and trans isomers of 1-p-trifluorophenyl-4-alkyl-cyclohexanol is also discussed.Although these compounds do not have a liquid crystalline phase themselves, a liquid crystal mixture containing them shows a much faster turn off speed than materials without them.Keywords: benzotrifluoride, trifluoromethyl, time response, TN cell
Aliphatic Liquid Crystals, 2. Some Nematic Derivatives of all-trans-Perhydrophenanthrene
Sucrow, Wolfgang,Minas, Hermann,Stegemeyer, Horst,Geschwinder, Peter,Murawski, Hans-Ruediger,Krueger, Carl
, p. 3332 - 3349 (2007/10/02)
A stereoselective synthesis of the all-trans-7-alkylperhydro-2-phenanthrenols 15a-f in 11 steps and 28 liquid crystalline esters 16 of 15a-f are described, additionally some further derivatives of 7-alkylperhydro-2-phenanthrenol.An X-ray structure analysis of ester 16ec is reported.
