氨基酸-银反应的光化学特点

doi:10.7517/j.issn.1674-0475.2005.03.209

影像科学与光化学 ›› 2005, Vol. 23 ›› Issue (3): 209-217.DOI: 10.7517/j.issn.1674-0475.2005.03.209

氨基酸-银反应的光化学特点

肖子丹^1,2, 张朝平¹, 申德君³

1. 贵州大学, 化学系, 贵州, 贵阳, 550025;
2. 长沙理工大学, 化学与环境工程系, 湖南, 长沙, 410000;
3. 贵阳学院, 化学系, 贵州, 贵阳, 550008

收稿日期:2004-12-08 修回日期:2005-03-04 出版日期:2005-05-23 发布日期:2005-05-23
通讯作者: 张朝平(1942-), 男, 贵州大学化学系教授, 主要从事生物无机化学和纳米材料的研究, 通讯联系人, Tel:13765024803, 13618512670.

The Photochemistry Properties on Reactions of Amino Acids and Silver

XIAO Zi-dan^1,2, ZHANG Chao-ping¹, SHEN De-jun³

1. Department of Chemistry, Guizhou University, Guiyang 550025, Guizhou, P.R. China;
2. Department of Chemistry and Environmental Engineering, Changsha University of Science and Technology, Changsha 410000, Hunan, P.R. China;
3. Department of Chemistry, Guiyang College, Guiyang 550008, Guizhou, P.R. China

Received:2004-12-08 Revised:2005-03-04 Online:2005-05-23 Published:2005-05-23

摘要/Abstract

摘要： 氨基酸与银的反应是一个不借外加能量热力学上即可进行的过程,但当引入光之后,可改变反应速率.研究发现:Soret带出现吸收所需光照度的大小顺序为Asp Ag(Ⅰ)>Thr Ag(Ⅰ)>Tyr Ag(Ⅰ)>Lys Ag(Ⅰ),对于Cys Ag(Ⅰ)体系,Cys的α羧基氧、α氨基的氮与银(Ⅰ)结合时光照有利于反应的进行,而S原子与银(Ⅰ)结合与光照度几无关系.此反应是光助化学反应.

关键词: 氨基酸, 银, 光助化学反应, 紫外可见光谱, 荧光光谱

Abstract: The reaction of amino acids and silver is a thermal spontaneous process without additional energy. But when light introduced into the system the reaction speed will be changed. According to our research, the order of light intensity when absorption at Soret-band found is as follows: Asp-Ag(Ⅰ)>Thr-Ag(Ⅰ)>Tyr-Ag(Ⅰ)>Lys-Ag(Ⅰ). For Cys-Ag system, the reactions between oxygen of α-carboxyl group and nitrogen of α-amino group with silver(Ⅰ) ion were promoted by lighting. But the reaction of S atom and silver (Ⅰ) ion was no relations with light intensity. These processes are light-assistance reactions.

Key words: amino acid, silver(Ⅰ) ion, light-assistance reaction, UV-Vis spectra, fluorescence spectra

中图分类号:

O614
O629

肖子丹, 张朝平, 申德君. 氨基酸-银反应的光化学特点[J]. 影像科学与光化学, 2005, 23(3): 209-217.

XIAO Zi-dan, ZHANG Chao-ping, SHEN De-jun. The Photochemistry Properties on Reactions of Amino Acids and Silver[J]. Imaging Science and Photochemistry, 2005, 23(3): 209-217.

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氨基酸-银反应的光化学特点

The Photochemistry Properties on Reactions of Amino Acids and Silver

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