3PA09 有機金属錯体のディステイック液晶(56) : アルキルチオ基を置換したフタロシアニン誘導体の液晶性と電気伝導性

概要

論文の詳細を見る
If a phthalocyanine (Pc) is substituted by non-electro-donating group of alkylthio chains instead of electro-donating group of alkoxy chains, the Q-band may red-shift on the electronic spectra. Hence, The energy difference between HOMO and LUMO levels becomes smaller, so that we can expect better electric conductivity. Accordingly, we synthesised eight long alkylthio-groups-substituted Pc derivatives, octakis(alkylthio)phthalocyanines, and their copper(II) complexes to investigate the mesomorphic properties. Each of them shows a Dh mesophase. Furthermore, we measured the electronic spectra and conductivities and compared with those of the octakis(alkoxy)phthalocyanine derivatives. The influence of the sulfur atoms on these properties will be discussed.
日本液晶学会の論文
1997-09-24