標題: Electrochemiluminescence studies of the cyclometalated iridium(III) complexes with substituted 2-phenylbenzothiazole ligands
作者: Kapturkiewicz, A
Chen, TM
Laskar, IR
Nowacki, J
應用化學系
Department of Applied Chemistry
關鍵字: electrogenerated chemiluminescence;iridium complexes;MLCT excited state
公開日期: 1-Aug-2004
摘要: Electrogenerated chemiluminescence (ECL) studies have been performed for the iridium(III) cyclometalated L2Ir(acac) complexes with substituted 2-phenylbenzothiazole ligand L. Electron transfer (ET) generation of the excited (3)*L2Ir(acac) has been studied using a triple-potential-step technique in acetonitrile-dioxane (1:1) solutions containing 0.1 M (n-C4H9)(4)NPF6 as the supporting electrolyte. ET reactions between electrochemically generated L2Ir(acac)(+) and A(-) (radical anions of aromatic nitriles) species lead to very efficient generation of ECL emission. Extremely high ECL efficiencies (up to 0.40) close to the excited (3)*L2Ir(acac) luminescence yields have been found. (C) 2004 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.elecom.2004.06.006
http://hdl.handle.net/11536/26500
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2004.06.006
期刊: ELECTROCHEMISTRY COMMUNICATIONS
Volume: 6
Issue: 8
起始頁: 827
結束頁: 831
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