Photochromism of Single Crystalline Diarylethenes.
Photochromism of Single Crystalline Diarylethenes.
复制标题
单晶二芳基乙烯的光致变色。
DOI：
10.1246/cl.1995.899
复制
发表时间：
1995
影响因子：
1.6
通讯作者：
Hirohisa Tsuzuki
中科院分区：
文献类型：
--
作者：
M. Irie;K. Uchida;T. Eriguchi;Hirohisa Tsuzuki
发现1,2-双(2,4-二甲基-3-噻吩基)全氟环戊烯在单晶相中随着噻吩环的旋转发生可逆光致变色反应。开环无色异构体和光生红色异构体即使在 100 °C 下也具有热稳定性。着色/脱色循环可以重复100次以上，而不破坏晶体形状。线性偏振光下的吸收测量证明了晶体中光生有色异构体的规则排列。
1,2-Bis(2,4-dimethy-3-thienyl)perfluorocyclopentene was found to undergo a reversible photochromic reaction in a single crystalline phase with rotation of the thiophene rings. Both the open-ring colorless and the photogenerated red isomers were thermally stable even at 100 °C. Coloration/decoloration cycles could be repeated more than 100 times without destruction of the crystal shape. Regular alignment of the photogenerated colored isomers in the crystal was evidenced by the absorption measurement under linearly polarized light.