Synthesis and electrochemical properties of benzyl-mercapto and dodecyl-mercapto tetrasubstituted manganese phthalocyanine complexes

被引：65

作者：

Agboola, Bolade

Ozoemena, Kenneth I.

Westbroek, Philippe

Nyokong, Tebello

机构：

[1] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa

[2] Univ Pretoria, Dept Chem, ZA-0002 Pretoria, South Africa

[3] Univ Ghent, Dept Text, B-9052 Ghent, Belgium

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

manganese thiol-derivatised phthalocyanines; cyclic voltammetry; spectroelectrochemistry; self-assembled monolayer;

D O I：

10.1016/j.electacta.2006.09.002

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Manganese tetrakis (benzyl-mercapto) phthalocyanine (MnTBMPc) and manganese tetrakis (dodecyl-mercapto) phthalocyanine (MnTDMPc) complexes were synthesized and their spectral and electrochemical properties are reported. Cyclic voltammetric data showed three reversible to quasi-reversible and two irreversible redox processes for both complexes. Ring substituents influenced the positions of both oxidation and reduction redox couples. Spectroelectrochemistry confirmed the first two reductions to be due to (MnPc2-)-Pc-III/(MnPc2-)-Pc-II and (MnPc3-)-Pc-II/(MnPc2-)-Pc-II processes. The first example of a formation of self-assembled monolayers (SAMs) using thiol substituted MnPc complexes is presented, the SAMs were found to show blocking characteristics towards some faradaic reactions. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2520 / 2526

页数：7

共 30 条

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