Photochromism of Diarylethene Derivatives Having<i>n</i>-Alkylbenzothiophene and<i>n</i>-Alkylbenzofuran Units
作者:Tadatsugu Yamaguchi、Masahiro Irie
DOI:10.1246/bcsj.79.1100
日期:2006.7
Photochromic diarylethenes having benzofuran and benzothiophene rings have been synthesized and their photochromic performance in a single-crystalline phase has been examined. Although l,2-bis(2-methyl-1-benzothiophen-3-yl)perfluorocyclopentene (la) is photochemically inactive in the single-crystalline phase, diarylethene derivatives having a benzofuran ring (2a and 3a) undergo photochromism in the single-crystalline
已经合成了具有苯并呋喃和苯并噻吩环的光致变色二芳基乙烯,并研究了它们在单晶相中的光致变色性能。尽管 1,2-双 (2-甲基-1-苯并噻吩-3-基) 全氟环戊烯 (Ia) 在单晶相中是无光化学活性的,但具有苯并呋喃环的二芳基乙烯衍生物(2a 和 3a)在单晶相中发生光致变色。结晶相。还合成了在2-位(4a-6a)具有乙基、丙基和丁基链的1-(1-苯并呋喃-3-基)-2-(1-苯并噻吩-3-基)六氟环戊烯。具有丙基链的衍生物(5a)在单晶相中经历光致变色。在紫外线照射下,晶体在单晶相中显示出鲜艳的红色。