| 螺吡喃逆向变色光量子产率测定及其光致变色特性研究 |
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| 引用本文： | 周金渭,张复实,李毅婷,赵福群,唐应武,宋心琦,李二成. 螺吡喃逆向变色光量子产率测定及其光致变色特性研究[J]. 影像科学与光化学, 1995, 13(4): 294-300. DOI: 10.7517/j.issn.1674-0475.1995.04.294 |
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| 作者姓名： | 周金渭 张复实 李毅婷 赵福群 唐应武 宋心琦 李二成 |
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| 作者单位： | 1. 清华大学化学系, 北京100084;2. 中国科学院化学研究所, 北京100080 |
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| 摘 要： | 研究了1'-十八烷基-3',3',-二甲基-6,8-二硝基螺[2H-1-苯并吡喃-2,2'-吲哚啉]的逆向光致变色特性,通过吸收光谱测定了其在不同溶剂中可见光照后无色体(SP)的开环生色速率常数及在甲醇中有色体(MC)光照关环的光量子产率,发现溶剂的极性对开环有色体(MC)的吸收光谱影响较大,但对无色体的开环速率常数的影响相对较小。利用1HNMR分析了SP和MC的结构,证实了MC处于反式构型。
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| 关 键 词： | 逆向光致变色 吲哚啉螺吡喃 溶剂效应 光量子产率 1HNMR |
| 收稿时间： | 1994-12-05 |
A STUDY ON THE INVERSELY PHOTO-CHROMIC BEHAVIOR AND PHOTO-BLEACHING OUANTUM YIELD OF AN INDOLINE SPIROPYRAN |
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| ZHOU JIN-WEI,ZANG FU-SHI,LI YI-TING ZHAO FU-QUN,TANG YIN-WU,SONG XIN-QI,LI ER-CHENG. A STUDY ON THE INVERSELY PHOTO-CHROMIC BEHAVIOR AND PHOTO-BLEACHING OUANTUM YIELD OF AN INDOLINE SPIROPYRAN[J]. Imaging Science and Photochemistry, 1995, 13(4): 294-300. DOI: 10.7517/j.issn.1674-0475.1995.04.294 |
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| Authors: | ZHOU JIN-WEI ZANG FU-SHI LI YI-TING ZHAO FU-QUN TANG YIN-WU SONG XIN-QI LI ER-CHENG |
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| Affiliation: | 1. Department of Chemistry, Qinghua University, Beijing 1000874, P.R. China;2. Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, P.R. China |
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| Abstract: | The inversely photochromic property of an indoline spiropyran is investigated by UV-visible and 1HNMR spectra. The results indicate that the polarity of solvent has promineneffect on the λmax of its colored merocyanine form(MC),but the effects on the λmax of theclosed form(SP) and the coloration rate after visible bleaching are rather weak. The lighbleaching quantum yield of the colored form in methanol is determinated to be 0.096,Fromthe 1HNMR spectra,the structural characteristics of MC,SP are analyzed. |
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| Keywords: | inverse photochromism indoline spiropyran polarity effect of solventquantum yield 1HNMR |
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