Electrochemiluminescence studies of the cyclometalated iridium(III) L2Ir(acetyl acetonate) complexes

被引：64

作者：

Kapturkiewicz, A

Nowacki, J

Borowicz, P

机构：

[1] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

[2] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland

来源：

ELECTROCHIMICA ACTA | 2005年 / 50卷 / 16-17期

关键词：

electrogenerated chemiluminescence; iridium complexes; MLCT excited state;

D O I：

10.1016/j.electacta.2004.12.013

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrogenerated chemiluminescence (ECL) studies have been performed for the iridium(III) cyclometalated L2Ir(acac) complexes in 0.1 M (n-C4H9)(4)NPF6 acetonitrile-dioxane (1:1, v,v) solutions using a triple-potential-step technique. Electron transfer between electrochemically generated L(2)lr(acac)(+) cations and A(-) (radical anions of aromatic nitriles) leads to generation of the excited 3* L2Ir(acac) species. Extremely high ECL efficiencies (up to 0.55) close to the excited (L2Ir)-L-3*(acac) luminescence yields have been found. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3395 / 3400

页数：6

共 26 条

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