详细信息

Cu(I)-L-半胱氨酸强酸性体系配合物组成的研究    

Study on Composition of Cu(I)-Cysteine in Strong Acid System

文献类型:期刊文献

中文题名:Cu(I)-L-半胱氨酸强酸性体系配合物组成的研究

英文题名:Study on Composition of Cu(I)-Cysteine in Strong Acid System

作者:汪明芳[1];王娟娟[1];张关永[1]

机构:[1]华东理工大学化学与分子工程学院,上海200237

年份:2007

卷号:48

期号:2

起止页码:65

中文期刊名:化学世界

外文期刊名:Chemical World

收录:北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;

语种:中文

中文关键词:L-半胱氨酸;Cu^+;极谱法;拉曼光谱法;铜配合物

外文关键词:cysteine ; Cu^+ ; polarography; Raman spectroscopy; copper complex

摘要:用极谱法和拉曼光谱法相结合分析测定了Cu(I)-L-半胱氨酸在强酸性体系中的配合物组成。研究表明,L-半胱氨酸(RSH)以RS-负离子形式和Cu+形成配位数分别为1、2、3的配位离子[Cu(RS)][、Cu(RS)2]-[、Cu(RS)3]2-,它们的稳定常数分别为760,5.5×105,8.
The composition of Cu(I)-L-cysteine in strong acid system was determined by polarography and Raman spectroscopy. Complex ions [ Cu (BS) ], [ Cu (BS)2 ]^- and [ Cu (KS)3 ]^2- whose coordination numbers were 1,2 and 3, respectively were formed by the combination of L-cysteine (RSH) in the form of RS^- and Cu^+ in this system. The stability contants of the complexes were 760, 5.5 × 10^5 and 8.0 × 10^7, respectively.

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