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Issue 14, 2011
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Electronic and geometrical manipulation of the excited state of bis-terdentate homo- and heteroleptic ruthenium complexes

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Abstract

This work describes the synthesis and characterization of two new bis-terdentate Ru(II) complexes. Compound 1 is a homoleptic complex containing two CNC N-heterocyclic carbene (NHC) based ligands, whereas compound 2 bears one CNC ligand and an ancillary terpyridine ligand. The redox and photophysical properties of both compounds have been investigated and their X-ray crystal structures determined. Complex 1 displays a close-to-perfect octahedral coordination geometry and is not luminescent at room temperature while complex 2 features room temperature and 77 K luminescence despite its partially distorted geometry. The presence of the NHC moieties brings a significant amount of electronic density to the metal centre therefore lowering its oxidation potential with respect to that of analogous polypyridyl complexes.

Graphical abstract: Electronic and geometrical manipulation of the excited state of bis-terdentate homo- and heteroleptic ruthenium complexes

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Publication details

The article was received on 09 Sep 2010, accepted on 20 Jan 2011 and first published on 03 Mar 2011


Article type: Paper
DOI: 10.1039/C0DT01197E
Citation: Dalton Trans., 2011,40, 3683-3688
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    Electronic and geometrical manipulation of the excited state of bis-terdentate homo- and heteroleptic ruthenium complexes

    J. Dinda, S. Liatard, J. Chauvin, D. Jouvenot and F. Loiseau, Dalton Trans., 2011, 40, 3683
    DOI: 10.1039/C0DT01197E

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