| 具有多个光致变色单元的二芳基乙烯分子光密度的增加 |
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| 引用本文： | 曾德兴,陈懿. 具有多个光致变色单元的二芳基乙烯分子光密度的增加[J]. 中国化学, 2006, 24(2): 264-268. DOI: 10.1002/cjoc.200690050 |
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| 作者姓名： | 曾德兴 陈懿 |
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| 作者单位： | Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100101, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （Nos. 60337020 and 60277001）. |
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| 摘 要： | 3,4-Diaryl-2,5-dihydropyrrole with multiphotochromophore units la was synthesized and its photochromic properties were investigated. It showed that all photochromophore units underwent reversible ring-opening （1a） and ring-closing （1b） photoisomerization reactions in both solution and polymer film with UV/Vis light irradiation, and photochromic properties of la were similar to those of photochromic diarylethene with monophotochromophore 2a. It was found that the optical density of lb was increased linearly with increase of the photochromophore units by comparison with that of 2b in the same condition. It was also found that no significant changes in absorption band and response time between diarylethenes with multiphotochromophores and monophotochromophore were detected in the same condition.
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| 关 键 词： | 光密度 光色二芳基乙烯 光致变色 有机化合物 光学材料 |
| 收稿时间： | 2005-05-06 |
| 修稿时间： | 2005-05-062005-10-08 |
Enhancement of Optical Density of Photochromic Diarylethene with Multiphotochromophores |
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| ZENG De-Xing, CHEN Yi. Enhancement of Optical Density of Photochromic Diarylethene with Multiphotochromophores[J]. Chinese Journal of Chemistry, 2006, 24(2): 264-268. DOI: 10.1002/cjoc.200690050 |
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| Authors: | ZENG De-Xing CHEN Yi |
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| Affiliation: | Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | 3,4‐Diaryl‐2,5‐dihydropyrrole with multiphotochromophore units 1a was synthesized and its photochromic properties were investigated. It showed that all photochromophore units underwent reversible ring‐opening ( 1a ) and ring‐closing ( 1b ) photoisomerization reactions in both solution and polymer film with UV/Vis light irradiation, and photochromic properties of 1a were similar to those of photochromic diarylethene with monophotochromophore 2a . It was found that the optical density of 1b was increased linearly with increase of the photochromophore units by comparison with that of 2b in the same condition. It was also found that no significant changes in absorption band and response time between diarylethenes with multiphotochromophores and monophotochromophore were detected in the same condition. |
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| Keywords: | photochromism diarylethene organic compound optical material |
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