Interaction of Ethylene-N,N'-dianthranilate to Ni(Ⅱ):Binding Properties and Coordination Mode Studies  

作　　者：FENG Jiao WANG Jing-Lin LIU Bin YANG Bin-Sheng 

机构地区：[1]Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education,Institute of Molecular Science,Shanxi University

出　　处：《Chinese Journal of Structural Chemistry》2013年第12期1787-1792,共6页结构化学（英文）

基　　金：Supported by the National Natural Science Foundation of China(21271122,20901048);Research Project Supported by Shanxi Scholarship Council of China(2013-018)

摘　　要：The binding properties of ethylene-N,N＇-dianthranilate （EDA） and Ni（II） were studied by difference UV-Vis in 0.05 M Tris-HCl buffer （pH 7.4）. The stoichiometric ratio of EDA to nickel （1：1） was confirmed and the conditional binding constant （IogKNi-EDA = 12.33 ± 0.06） was obtained. In addition, an interesting tetranuclear complex [Nin（EDA）4]·2CH3CH2OH-9H2O was obtained unexpectedly in alcohol-water solution and characterized by X-ray crystallography and electrospray ionization mass spectra （ESI-MS）. It is found that EDA acts as a pentadentate ligand and performs a chelating-bridging coordination mode.The binding properties of ethylene-N,N＇-dianthranilate （EDA） and Ni（II） were studied by difference UV-Vis in 0.05 M Tris-HCl buffer （pH 7.4）. The stoichiometric ratio of EDA to nickel （1：1） was confirmed and the conditional binding constant （IogKNi-EDA = 12.33 ± 0.06） was obtained. In addition, an interesting tetranuclear complex [Nin（EDA）4]·2CH3CH2OH-9H2O was obtained unexpectedly in alcohol-water solution and characterized by X-ray crystallography and electrospray ionization mass spectra （ESI-MS）. It is found that EDA acts as a pentadentate ligand and performs a chelating-bridging coordination mode.

关 键 词：ethylene-N N＇-dianthranilate Ni（Ⅱ） SPECTRUM crystal structure 

分 类 号：O641.4[理学—物理化学]