Thermally reversible photochromic systems. Photochromism of a dipyrrolylperfluorocyclopentene

被引：84

作者：

Uchida, K ^{[1
]}

Matsuoka, T

Sayo, K

Iwamoto, M

Hayashi, S

Irie, M

机构：

[1] Ryukoku Univ, Fac Sci & Technol, Dept Chem Mat, Otsu, Shiga 5202194, Japan

[2] Mitsuboshi Belting Co Ltd, Nagata Ku, Kobe, Hyogo 6530024, Japan

[3] Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Fukuoka 8128581, Japan

[4] Japan Sci & Technol Corp JST, CREST, Fukuoka 8128581, Japan

来源：

CHEMISTRY LETTERS | 1999年 / 08期

关键词：

D O I：

10.1246/cl.1999.835

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A diarylethene having 2-cyanopyrrole rings turned blue upon UV irradiation in ethyl acetate. The colored form was unstable and returned to the colorless open-ring form with a half-life time of 37 s at room temperature. The activation energy of the thermal fading was obtained to be 32.5 kJ / mol, which is less than half of that of spironaphthoxazine.

引用

页码：835 / 836

页数：2

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