REDOX TUNING OF BINUCLEAR RHENIUM(V) COMPLEXES - THE INFLUENCE OF PYRIDINE SUBSTITUENTS ON THE VOLTAMMETRY OF MU-OXOBIS[CIS-DICHLORO-CIS-DIPYRIDYLOXORHENIUM(V)]

被引：11

作者：

HOLDER, GN ^{[1
]}

BOTTOMLEY, LA ^{[1
]}

机构：

[1] GEORGIA INST TECHNOL,SCH CHEM & BIOCHEM,ATLANTA,GA 30332

来源：

INORGANICA CHIMICA ACTA | 1992年 / 194卷 / 02期

基金：

美国国家卫生研究院;

关键词：

D O I：

10.1016/S0020-1693(00)82654-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The recent interest in the voltammetry of the dioxorhenium(V) complexes of pyridine prompted us to investigate the voltammetry of mu-oxo-bis[cis-dichloro-cis-dipyridyloxorhenium(V)] complexes. Seven compounds containing pyridines with electron-withdrawing or electron-donating substituents were synthesized and their redox behavior characterized by variable potential sweep rate cyclic voltammetry and variable pulse height differential pulse voltammetry. Four one-electron redox couples are observed within the accessible potential range of CH2Cl2 containing 0.10 M n-Bu4NPF6 as the supporting electrolyte. The dimeric structure remains intact for the two oxidation and first reduction processes. The complex undergoes a reversible heterolytic cleavage of the mu-oxo linkage following the second reduction process. The redox potential for each process correlates with the inductive effect of the pyridyl substituent.

引用

页码：133 / 137

页数：5

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