Redox active surface films produced by electrooxidation of substituted indolysines

被引：5

作者：

Yanilkin, VV ^{[1
]}

Mamedov, VA ^{[1
]}

Toropchina, AV ^{[1
]}

Kalinin, AA ^{[1
]}

Nastapova, NV ^{[1
]}

Morozov, VI ^{[1
]}

Shekurov, RP ^{[1
]}

Isaikina, OG ^{[1
]}

机构：

[1] Russian Acad Sci, Kazan Res Ctr, AE Arbuzov Organ & Phys Chem Inst, Kazan 420008, Tatarstan, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2006年 / 42卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

indolysine; 3,3 '-biindolysine; quinoxaline; redox-active film; electrochemical oxidation; cyclic voltammetry; electron spin resonance; radical cation;

D O I：

10.1134/S1023193506030025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical oxidation of substituted mono- and 3,3'-biindolysines is studied by methods of cyclic voltammetry and electron spin resonance (ESR) combined with in situ electrolysis. In acetonitrile, there occurs easy irreversible electrochemical oxidation and proceed processes of association of generated radical cations via unsubstituted positions of five-membered cycles. Polymeric products of oxidation of 2-arylindolysines, 3-indolysine-2-yi-quinoxalines, and 2,2'-diaryl-3.3'-biindolysines are obtained when cycling potential in the interval -0.3 V -> +0.8 V -> -1.3 V -> -0.3 V (Fc/Fc(+)). The products deposit on the electrode with the formation of redox-active films that are capable of undergoing reversible oxidation with the formation of stable paramagnetic states registered by the ESR method.

引用

页码：212 / 224

页数：13

共 61 条

[41] ELECTROCOATING OF IRON AND OTHER METALS WITH POLYPYRROLE [J].