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Iridium(III) complexes with polypyridine ligands coordinated as N-heterocyclic carbenes. Synthesis, structure and photophysical properties

AuthorsConejero, Salvador ; Maya, Celia ; Paneque, Margarita ; Petronhilo, Ana; Poveda, Manuel L.; Vattier, Florencia ; Álvarez, Eleuterio ; Carmona, Ernesto ; Laguna, Antonio ; Crespo, Olga
Issue Date2012
PublisherRoyal Society of Chemistry
CitationDalton Transactions 41: 14126- 14136 (2012)
AbstractUnsaturated [TpMe2Ir(III)] fragments, readily generated from compounds [TpMe2Ir(C6H5)2(N2)], (1a) and [TpMe2Ir(¿4-CH2vC(Me)C(Me)vCH2] (1b) (TpMe2 = hydrotris(3,5-dimethylpyrazolyl)borate), induce the isomerisation of the polypyridines, 2,2¿-bipyridine, 1,10-phenanthroline and 2,2¿:6¿2¿¿-terpyridine, to form complexes that contain the carbene tautomer of these ligands. For terpy, a binuclear compound has also been isolated, in which this molecule bridges two Ir(III) centres, thanks to its coordination as a bidentate N-heterocyclic carbene. The new compounds have been structurally authenticated by X-ray crystallography and their photophysical properties have been investigated.
Identifiersdoi: 10.1039/c2dt31754k
issn: 1477-9226
Appears in Collections:(IIQ) Artículos
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