镍（Ⅱ）与meso－四（4－N－甲基吡啶基）卟啉（TMPyP）络合物的伏安法研究  

Voltammetric Study on Nickel(Ⅱ) Complex of meso-Tetra-(4-N-methylpyridyl) porphyrin in Aqueous Solution

作　　者：侯建敏[1] 高小霞[1] 

机构地区：[1]北京大学化学系

出　　处：《高等学校化学学报》1994年第8期1136-1139,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：本文用循环伏安法、溶出伏安法和计时库仑法等多种电化学方法研究了合成的镍（Ⅱ）与ｍｅｓｏ－四（４－Ｎ－甲基吡啶基）卟啉（ＴＭＰｙＰ）络合物的电还原行为。结果表明，Ｎｉ（Ⅱ）ＴＭＰｙＰ的还原过程是中心离子Ｎｉ（Ⅱ）和卟啉环同时还原，其中Ｎｉ（Ⅱ）被还原为Ｎｉ（０），总电子转移数为６．比较并讨论了溶解氧对锰、铁、钴、镍卟啉的不同影响．The electrochemical behavior of nickel(Ⅱ)complex of meso-tetra(4-N-methylpyridyl)porphyrin(TMPyP):in aqueous solution has been investigated by cyclic voltammetric,stripping voltammetric and chronocoulometric techniques. A reductive complex wave exhibited at-1.0 V(vs. Ag/AgCl)in ammoniacal buffer solution(pH=9.0) may be attributed to the six-electron transfer reduction of both Ni(Ⅱ) and TMPyP in the complex.It has heen demonstrated that Ni(Ⅱ)in the complex is reduced to Ni(0).It was observed that no significant influence upon the cyclic voltammograms of NiTMPyP by the dissolved oxygen as compared with Mn2+, Fe2+,Co2+ metalloporphrins.

关 键 词：伏安法 镍 卟啉 络合物 电化学 

分 类 号：O614.813[理学—无机化学]