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Issue 35, 2012
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Synthesis, structure, photophysics and electrochemiluminescence of Re(I) tricarbonyl complexes with cationic 2,2-bipyridyl ligands

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Abstract

Two water soluble Re(I) tricarbonyl diimine complexes containing cationic 2,2′-bipyridyl ligands [Re(L1)(CO)3(AN)]2+ (1) and [Re(L2)(CO)3(AN)]3+ (2) (L1 and L2: a cationic 2,2′-bipyridyl ligand, AN: acetonitrile) were synthesized and characterized. Their photophysical, electrochemical and electrochemiluminescent properties were investigated. The crystal structures of the two complexes have also been determined. Electrochemiluminescence (ECL) of the two complexes 1 and 2 have been studied in aqueous buffer solution in the presence of co-reactant tri-n-propylamine (TPrA) or 2-(dibutylamino)ethanol (DBAE) at a Au working electrode. The ECL behavior of the complexes was also studied in the presence of several surfactants such as Triton X-100 and Zonyl FSN. The ECL signals of the rhenium(I) complex were enhanced about 190-fold and 70-fold at a Au electrode in the presence of Triton X-100 for the [Re(L1)(CO)3(AN)]2+/TPrA and [Re(L1)(CO)3(AN)]2+/DBAE systems, respectively.

Graphical abstract: Synthesis, structure, photophysics and electrochemiluminescence of Re(i) tricarbonyl complexes with cationic 2,2-bipyridyl ligands

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Publication details

The article was received on 11 Jan 2012, accepted on 05 Jul 2012 and first published on 10 Jul 2012


Article type: Paper
DOI: 10.1039/C2DT30074E
Citation: Dalton Trans., 2012,41, 10612-10618
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    Synthesis, structure, photophysics and electrochemiluminescence of Re(I) tricarbonyl complexes with cationic 2,2-bipyridyl ligands

    M. Li, X. Liu, Y. Shi, R. Xie, Q. Wei and G. Chen, Dalton Trans., 2012, 41, 10612
    DOI: 10.1039/C2DT30074E

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