| 带有长侧链醌类化合物的Langmuir膜及其表面电势 |
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| 引用本文： | 黄岩谊,甘良兵,黄春辉,赵一雷,翟锦,邹永德,谭俊,赵新生.带有长侧链醌类化合物的Langmuir膜及其表面电势[J].高等学校化学学报,1998,19(8):1323-1325. |
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| 作者姓名： | 黄岩谊 甘良兵 黄春辉 赵一雷 翟锦 邹永德 谭俊 赵新生 |
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| 作者单位： | 1. 北京大学稀土材料化学及应用国家重点实验室, 北京, 100871;
2. 中山大学物理系, 广州, 510275;
3. 北京大学化学系, 北京, 100871 |
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| 基金项目： | 国家自然科学基金,国家攀登计划A资助 |
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| 摘 要： | 泛醌(Ubiquinone)和质体醌(Plastoquinone)作为非蛋白电子载体存在于动物线粒体呼吸链和植物光合作用链中.这两类物质在生物膜上有活性.
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| 关 键 词： | 泛醌 质体醌 Langmuir膜 表面电势 半经验分子轨道理论 |
| 收稿时间： | 1997-05-26 |
Studies on the Langmuir Films of the Quinone Compounds with Long Alkyl Side Chains and Their Surface Potential |
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| HUANG Yan-Yi,GAN Liang-Bing,HUANG Chun-Hui,ZHAO Yi-Lei,ZHAI Jin,ZOU Yong-De,TAN Jun,ZHAO Xin-Sheng.Studies on the Langmuir Films of the Quinone Compounds with Long Alkyl Side Chains and Their Surface Potential[J].Chemical Research In Chinese Universities,1998,19(8):1323-1325. |
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| Authors: | HUANG Yan-Yi GAN Liang-Bing HUANG Chun-Hui ZHAO Yi-Lei ZHAI Jin ZOU Yong-De TAN Jun ZHAO Xin-Sheng |
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| Institution: | 1. State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, 100871;
2. Dept. Phys.,Zhongshan Un iversity, Guangzhou, 510275;
3. Dept. Chem., Peking University, 100871 |
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| Abstract: | The Langmuir films of three quinone (ubiquinone or plastoquinone) molecules with long alkyl side chains, 2,3 dimethyl 5 nonadecyl 1,4 quinone(1), 2,3 dimethyl 5,6 dinonadecyl 1,4 quinone(2) and 6 methyl 2,3 dimethoxyl 5 nonadecyl 1,4 quinone(3) were investigated. The surface potential isotherms of these molecules have been studied for the first time by using Kelvin probe method. The phenomena presented by the surface pressure and surface potential isotherms have been well explained theoretically. By using the semi empirical molecular orbital theory, the simulation of molecular dipole moments were calculated and the packing orientation of different molecules on the air/water interface were deduced according to the results of surface potential measurements. |
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| Keywords: | Ubiquinone Plastoquinone Langmuir film Surface potential Semi empirical molecular orbital theory |
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