Synthesis, electrochemical and electrocatalytic behaviour of thiophene-appended cobalt, manganese and zinc phthalocyanine complexes

被引：76

作者：

Obirai, J ^{[1
]}

Nyokong, T ^{[1
]}

机构：

[1] Rhodes Univ, Dept Chem, ZA-6139 Grahamstown, South Africa

来源：

ELECTROCHIMICA ACTA | 2005年 / 50卷 / 27期

基金：

新加坡国家研究基金会;

关键词：

phthalocyanine; cobalt; manganese; zinc; electrocatalysis; thermal annealing; L-cysteine;

D O I：

10.1016/j.electacta.2005.03.024

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work reports on the syntheses of new thiophene tetra substituted cobalt, manganese and zinc phthalocyanine (CoTETPc, (CI)MnTETPc and ZnTETPc) complexes. The redox processes due to the thiophene substituent on the ring of the metallophthalocyanines (MPcs) were observed, in addition to Pc ring and metal (for Co and Mn complexes) based redox activity. The electrocatalylic activity of the CoTETPc complex adsorbed on glassy carbon electrode (GCE) by drop/dry-thennal annealing was investigated using L-Cysteine. The modified electrode was stable to repetitive use without any signs of deactivation by oxidation products and was used to determine L-cysteine at concentrations between 0.0015 and 1 mM in pH 4 aqueous conditions. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：5427 / 5434

页数：8

共 42 条

[1] Controlled trial of N-acetyleysteine for patients with probable Alzheimer's disease [J].

Adair, JC ;

Knoefel, JE ;

Morgan, N .

NEUROLOGY, 2001, 57 (08) :1515-1517

[2] N-acetyl-L-cysteine improves survival and preserves motor performance in an animal model of familial amyotrophic lateral sclerosis [J].

Andreassen, OA ;

Dedeoglu, A ;

Klivenyi, P ;

Beal, MF ;

Bush, AI .

NEUROREPORT, 2000, 11 (11) :2491-2493

[3]

[Anonymous], J INORG ORGANOMET PO

[4]

[Anonymous], [No title captured]

[5] Modification of electrodes with porphyrin-functionalised conductive polymers [J].

Ballarin, B ;

Masiero, S ;

Seeber, R ;

Tonelli, D .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 449 (1-2) :173-180

[6] Silicon phthalocyanine Pc 4 and red light causes apoptosis in HIV-infected cells [J].

BenHur, E ;

Oetjen, J ;

Horowitz, B .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1997, 65 (03) :456-460

[7]

Bonnett R., 2000, ADV CHEM TEXTS, V1

[8] N-acetylcysteine potentiates nitroglycerin-induced reversal of platelet aggregation [J].

Chirkov, YY ;

Horowitz, JD .

JOURNAL OF CARDIOVASCULAR PHARMACOLOGY, 1996, 28 (03) :375-380

[9] ELECTRICAL, STRUCTURAL AND GAS SENSING PROPERTIES OF ZINC PHTHALOCYANINE THIN-FILMS [J].

COLLINS, RA ;

MOHAMMED, KA .

THIN SOLID FILMS, 1986, 145 (01) :133-145

[10] Influence of peripheral electron-withdrawing substituents on the conductivity of zinc phthalocyanine in the presence of gases.: Part 2:: oxidizing gases [J].

Germain, JP ;

Pauly, A ;

Maleysson, C ;

Blanc, JP ;

Schöllhorn, B .

THIN SOLID FILMS, 1998, 333 (1-2) :235-239

← 1 2 3 4 5 →