Spectral Properties and Photochromic Characteristics of Spiropyran Dyes

作     者：SHEN Kai-hua HAN Jian-guo ZHANG Gang CHOI Dong-hoon 

作者机构：The State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116012 P. R. China The Key Laboratory of Cellulose and Lignocellulosics Chemistry Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 P. R. China Polymer and Fiber Material Engineering Kyunghee University Kyong Kido 449-701 Korea 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2006年第22卷第4期

页      面：505-509页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：Supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars  Ministry of Education(No. SRF-2004-527) 

主　　题：Photochromism Spiropyran UV radiation Protonation 

摘      要：A bis-benzospiropyran（BBSP） and nitro-substituted indoline spirobenzopyrans（SBP） were prepared by following a simple procedure. The reaction mechanism of synthesizing bis-benzospiropyran is discussed. A comparative analysis of the spectral and photochromic properties between SBP and BBSP was carried out with the aid of a PMMA film. The results indicate that chemical structures and UV irradiation played an important role in the spectral and photochromic properties of SBP and BBSP, which would readily affect λmax of the colored forms and the reversibility. The IR spectra and ^1H NMR spectra of these compounds are used to interpret the photochromic phenomena under different UV irradiation and determine the configurations of SBP and BBSP.