Photochromism of Hemithioindigo Derivatives. I. Preparation and Photochromic Properties in Organic Solvents
作者:Takeo Yamaguchi、Takahiro Seki、Takashi Tamaki、Kunihiro Ichimura
DOI:10.1246/bcsj.65.649
日期:1992.3
Thirteen hemithioindigo (HT) derivatives bearing alkyl chains are newly synthesized and their photochromism and emission properties are investigated. The Z/E photoisomerisms of these compounds in organic solvents are essentially in agreement with data reported by Mostoslavskii and Izmail’skii (J. Gen. Chem. USSR, Engl Transl.), 31, 21 (1961), and subsequent papers). At 77 K both the E and Z isomers
新合成了 13 种带有烷基链的半硫靛 (HT) 衍生物,并研究了它们的光致变色和发射性能。这些化合物在有机溶剂中的 Z/E 光异构现象与 Mostoslavskii 和 Izmail'skii (J. Gen. Chem. USSR, Engl Transl.), 31, 21 (1961) 和随后的论文) 报道的数据基本一致。在 77 K 时,HT 生色团的 E 和 Z 异构体都发出强度相当的荧光,而在室温下,仅从 Z 异构体观察到非常微弱的荧光。对 Z/E 光异构化的可重复数量的检查表明,HT 发色团具有显着的固有光疲劳抗性。