Effect of hydroxyl and amino groups on electrochemiluminescence activity of tertiary amines at low tris(2,2′-bipyridyl)ruthenium(II) concentrations

被引：38

作者：

Han, Shuang ^{[1
,2
]}

Niu, Wenxin ^{[1
,2
]}

Li, Haijuan ^{[1
,2
]}

Hu, Lianzhe ^{[1
,2
]}

Yuan, Yali ^{[1
,2
]}

Xu, Guobao ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100864, Peoples R China

来源：

TALANTA | 2010年 / 81卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Tris(2,2 '-bipyridyl)ruthenium(II); Electrochemiluminescence; Coreactant; Diamine; Hydroxyl; INHIBITED RU(BPY)(3)(2+) ELECTROCHEMILUMINESCENCE; ELECTROGENERATED CHEMILUMINESCENCE; EMISSION INTENSITY; LIGHT-EMISSION; ECL REACTION; SYSTEM; OXIDATION; DNA; TRIS(2,2'-BIPYRIDINE)RUTHENIUM(II); RUTHENIUM(II);

D O I：

10.1016/j.talanta.2009.11.037

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

ECL of several amines containing different numbers of hydroxyl and amino groups was investigated. N-butyldiethanolamine is found to be more effective than 2-(dibutylamino)ethanol at gold and platinum electrodes, and is the most effective coreactant reported until now. Surprisingly, ECL intensities of monoamines, such as 2-(dibutylamino)ethanol and N-butyldiethanolamine, are much stronger than that of diamines including N,N,N',N'-tetrakis-(2-hydroxyethyl)-ethylenediamine and N,N,N',N'-tetrakis-(2-hydroxypropyl)ethlenediamine. The striking contrast between ECL signals of the investigated monoamines and diamines may result from more significant side reactions of diamines, such as the intramolecular side reactions between oxidative amine cation radicals and reductive amine free radicals. (C) 2009 Elsevier BM. All rights reserved.

引用

页码：44 / 47

页数：4

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