Title

Electrochemiluminescence in aqueous solution of a ruthenium(ii) bipyridyl complex containing a crown ether moiety in the presence of metal ions

Abstract

Changes in electrochemiluminescence (ECL) properties of a ruthenium polyazine compound containing a crown-ether moiety have been investigated in aqueous buffered solution. The electrochemistry, photophysics and ECL of (bpy)2Ru(AZA-bpy)2+ [bpy = 2,2′-bipyridine; AZA-bpy = 4-(N-aza-18-crown-6-methyl-2,2′-bipyridine)] in the presence of Pb2+, Hg2+, Cu2+ and Ag+ are reported. Oxidation of (bpy)2Ru(AZA-bpy)2+ produces ECL in the presence of tri-n-propylamine (TPrA; 0.2 M KH2PO4). Increases in ECL efficiency (photons generated per redox event) greater than 2-fold have been observed that depend on both the concentration and nature of the metal ion, allowing the determination of ions not directly involved in the ECL reaction sequence.

Department(s)

Chemistry

Document Type

Article

DOI

https://doi.org/10.1039/b206514m

Publication Date

2002

Recommended Citation

Bruce, David, and Mark M. Richter. "Electrochemiluminescence in aqueous solution of a ruthenium (II) bipyridyl complex containing a crown ether moiety in the presence of metal ions." Analyst 127, no. 11 (2002): 1492-1494.

Journal Title

Analyst

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