| 双偶极半菁衍生物／H4SiW12O40自组装多层膜的研究 |
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| 引用本文： | 王丽颖,高丽华,王科志.双偶极半菁衍生物／H4SiW12O40自组装多层膜的研究[J].化学学报,2003,61(11):1877-1880. |
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| 作者姓名： | 王丽颖 高丽华 王科志 |
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| 作者单位： | 1. 北京师范大学化学系,北京,100875
2. 北京工商大学化学与环境工程学院,北京,100037 |
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| 基金项目： | 国家自然科学基金(No.20071004),北京市自然科学基金(No.2002007)及北京市优秀人才专项基金资助项目. |
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| 摘 要： | 通过交替吸附H_4SiW_(12)O_(40)和双偶极半菁衍生物制备了一个新颖的无机- 有机杂化自组装多层膜。紫外可见光谱和X射线衍射研究证实了半菁衍生物 /H_4SiW_(12)O_(40)多层膜可被均匀沉积厚达至少12层，具有平均膜厚5.3nm(半菁 阳离子层加SiW_(12)O_(40)~(4-)层)的二维有序结构，膜中半菁衍生物与H_4SiW_ (12)O_(40)间发生了较强的电荷转移作用。循环伏安研究表明，薄膜具有较好的电 化学活性。
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| 关 键 词： | 杂多酸 半菁 紫外分光个分光光度法 X射线衍射分析 钨酸 P 硅酸 P 电荷转移 循环伏安法 |
| 修稿时间： | 2003年4月10日 |
Study on Self-assembled Multilayer Film Formed by a Bipolar Hemicyanine Derivative and H_2SiW_(12)O_(40) |
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| WANG,Li Ying b GAO,Li Hua b WANG,Ke Zhi,a.Study on Self-assembled Multilayer Film Formed by a Bipolar Hemicyanine Derivative and H_2SiW_(12)O_(40)[J].Acta Chimica Sinica,2003,61(11):1877-1880. |
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| Authors: | WANG Li Ying b GAO Li Hua b WANG Ke Zhi a |
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| Institution: | School of Chemical and Environmental Engineering, Beijing Technology and Business University;Department of Chemistry, Beijing Normal University |
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| Abstract: | A new self assembled multilayer film is prepared by alternating adsorption of H 4SiW 12 O 40 and a hemicyanine derivative. UV vis spectroscopy and X ray diffraction analysis demonstrate that the film is uniformly deposited up to at least 12 layers with mean film thickness being 5 3 nm per layer (the hemicyanine cation layer and SiW 12 O 4- 40 layer), and that the charge transfer occurs between H 4SiW 12 O 40 and the hemicyanine derivative in the film. Cyclic voltammetry shows that this novel inorganic organic composite film is of good electrochemical activity. |
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| Keywords: | heteropolyacid hemicyanine derivative self assembled film |
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