Electrochemiluminescent detection of metal cations using a ruthenium(II) bipyridyl complex containing a crown ether moiety

Brian D. Muegge, Mark M. Richter

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

The effects of metal ions on the electrochemiluminescence (ECL) properties of (bpy)2Ru(AZA-bpy) (bpy = 2,2′-bipyridine; AZA-bpy = 4-(N-aza-18-crown-6-methyl-2,2′-bipyridine) have been investigated. The electrochemistry, photophysics and ECL of Ru(bpy)32+ in the presence of Pb2+, Hg2+, Cu2+, and K+ are reported. The anodic oxidation of Ru(bpy)32+ produces ECL in the presence of tri-n-propylamine (TPrA) in 50:50 (v/v) CH3CN:H2O solution. Increases in ECL efficiency (photons generated per redox event) up to 20-fold that depend on both the concentration and nature of the metal ion have been observed, making this an interesting system for electrochemiluminescence metal ion sensing.

Original languageEnglish
Pages (from-to)547-550
Number of pages4
JournalAnalytical Chemistry
Volume74
Issue number3
DOIs
StatePublished - Feb 1 2002
Externally publishedYes

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