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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Veröffentlicht in:Inorganic chemistry 1999-04, Vol.38 (7), p.1504-1510
Hauptverfasser: Ishow, Eléna, Gourdon, André, Launay, Jean-Pierre, Chiorboli, Claudio, Scandola, Franco
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container_end_page 1510
container_issue 7
container_start_page 1504
container_title Inorganic chemistry
container_volume 38
creator Ishow, Eléna
Gourdon, André
Launay, Jean-Pierre
Chiorboli, Claudio
Scandola, Franco
description 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.
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Chem</addtitle><date>1999-04-05</date><risdate>1999</risdate><volume>38</volume><issue>7</issue><spage>1504</spage><epage>1510</epage><pages>1504-1510</pages><issn>0020-1669</issn><eissn>1520-510X</eissn><abstract>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. 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title Synthesis, Mass Spectrometry, and Spectroscopic Properties of a Dinuclear Ruthenium Complex Comprising a 20 Å Long Fully Aromatic Bridging Ligand
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