Fatigue mechanism of photochromic 1,2-bis(2,5-dimethyl-3-thienyl)perfluorocyclopentene

被引:78
作者
Higashiguchi, K [1 ]
Matsuda, K [1 ]
Kobatake, S [1 ]
Yamada, T [1 ]
Kawai, T [1 ]
Irie, M [1 ]
机构
[1] Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Higashi Ku, Fukuoka 8128581, Japan
关键词
D O I
10.1246/bcsj.73.2389
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The fatigue mechanism of photochromic 1,2-bis(2,5-dimethyl-3-thienyl)perfluorocyclopentene was studied in hexane solution. Upon irradiation with ultraviolet light, two kinds of by-products were produced in addition to normal photochromic reactions. The major by-product was isolated by HPLC, and was characterized by H-1 NMR and absorption spectroscopies and X-ray crystallographic analysis. A minor by-product was also isolated and analyzed with a mass spectrometer. Based on the molecular structural analysis a possible photofatigue mechanism of the dithienylethene was proposed.
引用
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页码:2389 / 2394
页数:6
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