| 二苯基吡唑啉衍生物发光态构象的研究 |
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| 引用本文： | 杨国强,吴世康.二苯基吡唑啉衍生物发光态构象的研究[J].影像科学与光化学,1993,11(2):69-75. |
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| 作者姓名： | 杨国强 吴世康 |
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| 作者单位： | 中国科学院感光化学研究所, 北京 100101 |
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| 摘 要： | 本工作在合成了几种不同结构吡唑啉衍生物的基础上,测定了它们在相同极性,不同粘度介质中的荧光量子产率并表明:和1-位氮原子相联苯基的旋转松弛对该类化合物的发光具有决定意义,通过对化合物在极性与非极性溶剂内和在冻结与流动条件下(低温与室温下)荧光强度的比较,证明了二苯基吡唑啉化合物的发光态具有扭曲构象。
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| 关 键 词： | 吡唑啉衍生物 发光行为 分子构象 荧光量子产率 |
| 收稿时间： | 1992-06-22 |
A STUDY ON THE EMISSIVE CONFORMATION OF DIPHENYL PYRAZOLINE DERIVATIVES |
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| YANG GUO-QIANG,Wu SHI-KANG.A STUDY ON THE EMISSIVE CONFORMATION OF DIPHENYL PYRAZOLINE DERIVATIVES[J].Imaging Science and Photochemistry,1993,11(2):69-75. |
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| Authors: | YANG GUO-QIANG Wu SHI-KANG |
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| Institution: | Institute of Photographic Chemistry, Academia Sinica, Beijing 100101 |
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| Abstract: | On the basis of the synthesis of pyrazoline derivatives with different stracture, the fluorescence quantum yields of these compounds have been measured in solvents with same polarity and different viscosities. Results indicated that, the rotation relaxtion of phenyl group attached to the 1-position of pyrazoline molecule possesses important significance. By means of the comparison of fluorescence intensity of these compounds in solvents with different polarities measured at fluidic and freezing conditions (at room temperature and 77 K), it can be proved that the emissive state of diphenyl pyrozoline compounds possesses a twisted conformation. |
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| Keywords: | 2-pyrazoline deravitive emission behavior molecular conformation fluorescence quantum yield |
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