Synthesis,structure and properties of an imidazolate bridged copper,zinc binuclear complex

作     者：MAO,Zong-Wan CHEN,Dong TANG,Wen-Xia Coordination Chemistry Institute,Nanjing University,Nanjing 210008 YU,Kai-Bei LIU,Li Analysis Center,Chengdu Branch of The Chinese Academy of Sciences,Chengdu 610015 

作者机构：Coordination Chemistry Institute Nanjing University Nanjing 210008 Analysis Center Chengdu Branch of The Chinese Academy of Sciences Chengdu 610015 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：1992年第10卷第1期

页      面：45-51页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

主　　题：Cu Synthesis,structure and properties of an imidazolate bridged copper,zinc binuclear complex Zn 

摘      要：A new imidazolate bridged Cu^(2+),Zn^(2+)binuclear complex[(dtma) CulmZn (dtma)]ClO_4· 2.5H_2O taken as active site model for Cu,Zn-SOD has been synthesized and its crystal structure *** the bond lengths, bond angles and the distance between Cu and Zn atoms in Cu-Im- Zn core of the model complex are close to those in Cu,*** parameters of the model complex as a function of pH show that the imidazolate bridge is stable in pH range 10—12,and is broken on Zn side at pH～*** decreasing pH,the imidazole is released at pH～4 and the dtma ligand dissociates from the Cu containing fragment at pH～2.4.