带有长侧链醌类化合物的Langmuir膜及其表面电势

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (8): 1323.

带有长侧链醌类化合物的Langmuir膜及其表面电势

黄岩谊¹, 甘良兵¹, 黄春辉¹, 赵一雷¹, 翟锦¹, 邹永德², 谭俊³, 赵新生³

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

收稿日期:1997-05-26 出版日期:1998-08-24 发布日期:1998-08-24
通讯作者: 黄春辉
作者简介:黄岩谊,男,21岁,博士研究生.
基金资助:
国家自然科学基金(批准号:29471005,29671001)及国家攀登计划A资助课题.

Studies on the Langmuir Films of the Quinone Compounds with Long Alkyl Side Chains and Their Surface Potential

HUANG Yan-Yi¹, GAN Liang-Bing¹, HUANG Chun-Hui¹, ZHAO Yi-Lei¹, ZHAI Jin¹, ZOU Yong-De², TAN Jun³, ZHAO Xin-Sheng³

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

Received:1997-05-26 Online:1998-08-24 Published:1998-08-24

摘要/Abstract

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.

关键词: 泛醌, 质体醌, Langmuir膜, 表面电势, 半经验分子轨道理论

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.

Key words: Ubiquinone, Plastoquinone, Langmuir film, Surface potential, Semi-empirical molecular orbital theory

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TrendMD:

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. 高等学校化学学报, 1998, 19(8): 1323.

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. Chem. J. Chinese Universities, 1998, 19(8): 1323.