Title

Electrogenerated chemiluminescence from polymer-bound ortho-metallated iridium(III) systems

Abstract

Three ortho-metallated iridium complexes whose emission maxima fall in different regions of the electromagnetic spectrum were bound in either Nafion or poly(9-vinylcarbazole) and their electrogenerated chemiluminescence (ECL) reported. The reaction of F(Ir)pic [bis(3,5-difluoro-2-(2-pyridyl)phenyl-(2- carboxypyridyl)-iridium III] with the oxidative-reductive co-reactant tri-n-propylamine (TPrA) resulted in ECL when the iridium complex was bound in Nafion. No significant ECL was observed for (btp)2Ir(acac) (bis[2,(2′-benzothienyl)-pyridinato-N,C3′](acetylacetonate)Ir(III)), and Ir(ppy)3 (where ppy = 2-phenylpyridine) under these conditions. However, all three compounds displayed ECL with TPrA when bound in poly(9-vinylcarbazole).

Department(s)

Chemistry

Document Type

Article

DOI

https://doi.org/10.1002/bio.807

Keywords

Electrochemiluminescence, Electrogenerated chemiluminescence, Iridium complexes, Nafion, PVK

Publication Date

3-1-2005

Journal Title

Luminescence

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