Synthesis, Mass Spectrometry, and Spectroscopic Properties of a Dinuclear Ruthenium Complex Comprising a 20 Å Long Fully Aromatic Bridging Ligand

Synthesis, Mass Spectrometry, and Spectroscopic Properties of a Dinuclear Ruthenium Complex Comprising a 20 Å Long Fully Aromatic Bridging Ligand

The luminescent dinuclear ruthenium complex [(bpy)2Ru(bqpy)Ru(bpy)2]4+ (1) comprising the 20 Å long fully aromatic bridging ligand bqpy has been synthesized by successive reactions from suitable precursor complexes. Investigations in electrospray mass spectrometry and 1H NMR spectroscopy have indica...

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Bibliographic Details
Published in:Inorganic chemistry Vol. 38; no. 7; pp. 1504 - 1510
Main Authors: Ishow, Eléna, Gourdon, André, Launay, Jean-Pierre, Chiorboli, Claudio, Scandola, Franco
Format: Journal Article
Language:English
Published: American Chemical Society 05-04-1999
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Summary:The luminescent dinuclear ruthenium complex [(bpy)2Ru(bqpy)Ru(bpy)2]4+ (1) comprising the 20 Å long fully aromatic bridging ligand bqpy has been synthesized by successive reactions from suitable precursor complexes. Investigations in electrospray mass spectrometry and 1H NMR spectroscopy have indicated the formation of supramolecular aggregates by strong π-stacking of the large aromatic parts. Despite the extended aromatic character of the bqpy bridging ligand, electrochemical and spectroscopic studies of the dinuclear complex have shown that the complex is composed of four noninteracting parts:  two Ru(bpy)3 2+-type units bridged by two bqpy-localized fragments similar to two fused phenazine moieties.
Bibliography:ark:/67375/TPS-0G171P7P-S
istex:CF2DFCADDB914F5820391635D4933BE6031FB6DE
ISSN:0020-1669
1520-510X
DOI:10.1021/ic9812196