Synthesis, structure, crystalline-state photochromism and photoinduced behavior of [2,2′-bi-1H-indene]-1,1′-dione-3,3′-dihydroxy-3,3′-diisobutyl

被引：14

作者：

Li, X ^{[1
]}

Song, ZY ^{[1
]}

Chen, Y ^{[1
]}

Meng, JB ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2005年 / 748卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

photochromism; electron spin resonance; free radical; crystal structure; synthesis;

D O I：

10.1016/j.molstruc.2005.03.025

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel photochromic compound, [2,2'-bi-1H-indene]-1,1'-dione-3,3'-dihydroxy-3,3'-diisobutyl (1), was synthesized and its crystal structure was determined. The photochromic and photoinduced properties of the compound were studied. The relationship of the structure with the properties was also observed. The results showed that compound I exhibited reversible photochromism, changing from normal yellow color crystal A to the active dark brown color crystal B after irradiation with UV or sunlight. And at the same time a stable organic radical was generated, which was detected by electron spin resonance spectroscopy. Reversible radical formations were possible mechanisms of the crystalline photochromism. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：161 / 164

页数：4

共 10 条

[1] A spirooxazine showing crystalline state photochromism [J].