139138-17-3Relevant academic research and scientific papers
Synthesis of chiral dopants based on carbohydrates
Tsuruta, Toru,Koyama, Tetsuo,Yasutake, Mikio,Hatano, Ken,Matsuoka, Koji
, p. 15 - 22 (2014/06/23)
Chiral dopants based on carbohydrates for nematic liquid crystals were synthesized from d-glucose, and their helical twisting power (HTP) values were evaluated. The chiral dopants induced helices in the host nematic liquid crystals. An acetyl derivative having an ether-type glycosidic linkage between carbohydrate and a mesogenic moiety showed the highest HTP value of 10.4 μm-1, while an acetyl derivative having an anomeric ester-type linkage did not show any HTP. It was surprising that this molecule had no HTP despite the presence of chirality in the molecule. A relationship between HTP and specific rotation was not observed in this study.
The Synthesis and Liquid Crystal Behavior of p-Benzotrifluoride Compounds II
Liang, J. C.,Chen, L.
, p. 253 - 258 (2007/10/02)
Four compounds with the general structure R-X-Y-CH2-CH2-Ph-CF3 were synthesized, where X is a 1,4-disubstituted trans-cyclohexyl ring, Y is a phenyl ring, and R is a n-alkyl group.The synthetic procedure is discussed and the structural assignments were confirmed by NMR spectroscopy.The liquid crystal behavior of these compounds was evaluated by DSC and polarizing microscopy.They might be used in fast switching liquid crystal mixtures.
