Fluorescence modulation in photochromic amorphous diarylethenes

被引：31
作者：
Kim, MS
Kawai, T
Irie, M
机构：
[1] Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Higashi Ku, Fukuoka 8128581, Japan
[2] Japan Sci & Technol Corp, JST, CREST, Higashi Ku, Fukuoka 8128581, Japan
来源：
OPTICAL MATERIALS | 2003年 / 21卷 / 1-3期
关键词：
photochromism; diarylethene; amorphous; fluorescence;
D O I：
10.1016/S0925-3467(02)00148-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
1,2-Bis(2-methyl-1-benzothiopfken-3-yl)perfluorocyclopentene derivatives having 2,4-diphenylphenyl substituents at 6 and 6' positions of the benzothiophene rings showed reversible photocyclization reactions and fluorescence spectral changes upon alternate irradiation with UV and visible light in the amorphous state. Both di- and mono-substituted derivatives, compounds 1a and 2a, formed stable amorphous state at room temperature and their glass transition temperatures were 127,and 88 degreesC, respectively. The closed-ring isomer of the di-substituted derivative 1b exhibited red fluorescence at 650 nm. (C) 2002 Elsevier Science B.V. All rights reserved.
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收藏
页码：271 / 274
页数：4
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