| 单核铁双卟啉配合物的可见光谱及其构象 |
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| 引用本文： | 任奇志,黄锦汪,刘展良,计亮年.单核铁双卟啉配合物的可见光谱及其构象[J].光谱学与光谱分析,1999,19(1):38-40. |
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| 作者姓名： | 任奇志 黄锦汪 刘展良 计亮年 |
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| 作者单位： | 中山大学化学与化工学院,510275,广州 |
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| 基金项目： | 国家自然科学基金,广东省自然科学基金,南京大学配位化学国家重点试验室资助 |
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| 摘 要： | 合成了一系列不同长度柔韧烷氧链相连的单核铁双卟啉配合物，观察了轴向配体咪唑加入其氯仿溶液前后的可见光谱的变化，结果表明，在波长６８０ｎｍ处，吸收峰强度与开放式和闭合式构象的平衡有关，随着烷氧链长度的增加，单核铁双卟啉配合物在溶液中的构象平衡由开放式向闭合式移动。
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| 关 键 词： | 单核铁双卟啉配合物 构象平衡 可见光谱 |
The Visible Spectra Study of the Conformation Equilibrium of Iron-Metal-Free Porphyrin Dimers |
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| Qizhi REN,Jinwang HUANG,Zhanliang LIU,Liangnian JI.The Visible Spectra Study of the Conformation Equilibrium of Iron-Metal-Free Porphyrin Dimers[J].Spectroscopy and Spectral Analysis,1999,19(1):38-40. |
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| Authors: | Qizhi REN Jinwang HUANG Zhanliang LIU Liangnian JI |
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| Institution: | School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou. |
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| Abstract: | A series of iron(III)-metal-porphyrin dimers linked with flexible alkoxyl chain at para position of two phenyl rings have been synthesized and characterized. An equilibrium of two conformations of porphyrin dimers (open and closed) has been studied by visible spectra. The intensity of absorption band 680 nm relates to equilibrium of two conformations. With the increase of the length of the alkoxyl chain,the closed conformation forms more easily. With the addition of axial ligand, the ferric ion of the dimers tends to bind with imidazole, and the intensity of the band 680 nm gradually decreases and disappears. |
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