| 两种新型阳离子吲哚啉螺吡喃的合成、表征和光致变色性质的研究 |
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| 引用本文： | 何炜,周金渭,隋强,李仲杰,王艳乔.两种新型阳离子吲哚啉螺吡喃的合成、表征和光致变色性质的研究[J].影像科学与光化学,1999,17(3). |
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| 作者姓名： | 何炜 周金渭 隋强 李仲杰 王艳乔 |
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| 作者单位： | 1. 西北大学化学系,西安,710069
2. 中国科学院化学研究所,北京,100080 |
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| 摘 要： | 螺吡喃是一类重要的光致变色化合物．螺吡喃的正向光致变色是指在紫外光照下，螺吡喃分子的Ｃ—Ｏ键异裂，由闭环无色体（ＳＰ）可逆地变成开环有色体（ＭＣ）．所形成的有色体可以在暗条件下热致褪色或在可见光照下褪成无色体（示意图１）．它的逆向光致变色是指某一类螺...
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| 关 键 词： | 吲哚啉螺吡喃，正向光致变色，逆向光致变色 |
SYNTHESIS, CHARACTERIZATION, ADN INVESTIGATION OF PHOTOCHROMIC PROPERTIES OF TWO NOVEL CATIONIC INDOLINOSPIROPYRANS |
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| HE Wei,ZHOU Jinwei,SUI Qiang,LI Zhongjie,WANG Yanqiao.SYNTHESIS, CHARACTERIZATION, ADN INVESTIGATION OF PHOTOCHROMIC PROPERTIES OF TWO NOVEL CATIONIC INDOLINOSPIROPYRANS[J].Imaging Science and Photochemistry,1999,17(3). |
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| Authors: | HE Wei ZHOU Jinwei SUI Qiang LI Zhongjie WANG Yanqiao |
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| Abstract: | Two novel cationic
indolinospirpoyrans, 1(nbutyltriethylammonium iodide)3,3dimethyl6nitro8methoxyspirone] and
1(nbutyltriethylammonium iodide)3,3dimethyl6,8dinitrospirobenzopyran2,2indoline], were
synthesized and characterized by suitable methods. The structures and configurations of MC
and SP of the two compounds are assigned via their 1H NMR spectra. The photochromism
properties of the two compounds were investigated. It was found that the former one shows
normal photochromism and the later one shows negative photochromism. The decoloration and
coloration process of the two compounds fit firstorder kinetics very well, and their rate
constants are 1.2110-2s-1 and 4.010-5s-1, respectively. |
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| Keywords: | indolinospiropyran normal photochromism negative photochromism |
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