| 苯甲酰基硫代苯甲酸-S-苯酯的双重磷光研究 |
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| 引用本文： | 蒋晓东,杨国强,吴世康. 苯甲酰基硫代苯甲酸-S-苯酯的双重磷光研究[J]. 影像科学与光化学, 1997, 15(2): 120-125. DOI: 10.7517/j.issn.1674-0475.1997.02.120 |
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| 作者姓名： | 蒋晓东 杨国强 吴世康 |
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| 作者单位： | 中国科学院生物物理研究所, 北京100101 |
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| 基金项目： | 国家自然科学基金资助项目(批准号:29474175) |
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| 摘 要： | 在对不同取代的苯甲酰基硫代苯甲酸-S-苯酯的光物理性质进行研究时,发现其苯甲酰基在邻位时可观测到双磷光现象,本工作对这种现象的机理进行了研究,确定这种现象是由于溶剂的作用,使溶液中具有多种不同的构象体,不同异构体的磷光发射不同,其激发波长也不同,改变激发波长可观察到双重磷光现象。
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| 关 键 词： | 硫代苯甲酸苯酯 双重磷光 构象异构体 溶剂效应 |
| 收稿时间： | 1996-09-26 |
DUAL PHOSPHORESCENCE OF BENZOYL S-PHENYL THIOBENZOATES |
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| JIANG Xiaodong,YANG Guoqiang,WU Shikang. DUAL PHOSPHORESCENCE OF BENZOYL S-PHENYL THIOBENZOATES[J]. Imaging Science and Photochemistry, 1997, 15(2): 120-125. DOI: 10.7517/j.issn.1674-0475.1997.02.120 |
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| Authors: | JIANG Xiaodong YANG Guoqiang WU Shikang |
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| Affiliation: | Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R. China |
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| Abstract: | The photophysical behavior of S-phenyl thiobenzoates with different substituents has been studied at 77 K and different results were observed. It was found that the only 2-benzoyl derivative can emit dual phosphorescence. This phenomenon was caused by solvent effect. There are at least two conformational isomers existed in polar solution for 2-benzoyl derivative. The peak wavelength in phosphorescence spectrum depends evidently on the excited wavelength used. |
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| Keywords: | benzoyl S-phenyl thiobenzoate dual phosphorescence conformational isomer solvent effect |
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