Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 33, Issue 6-7, Pages 522-527Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201100721
Keywords
heteroleptic; iridium; luminescence; organometallic polymer; platinum
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- le Fonds Quebecois de la Recherche sur la Nature et les Technologies (FQRNT)
- Centre d'Etudes des Materiaux Optiques et Photoniques de l'Universite de Sherbrooke (CEMOPUS)
- Centre Quebecois sur les Materiaux Fonctionnels (CQMF)
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Trans- dichlorobis(tri-n-butylphosphine)platinum(II) reacts with bis(2- phenylpyridinato)-(5,5'-diethynyl-2,2'-bipyridine)iridium(III) hexafluorophosphate to form the luminescent conjugated polymer poly[trans-[(5,5'-ethynyl-2,2'-bipyridine)bis(2- phenylpyridinato)-iridium(III)]bis(tri-n-butylphosphine)platinum(II)] hexafluorophosphate ([Pt]-[Ir])n. Gel permeation chromatography indicates a degree of polymerization of 9 inferring the presence of an oligomer. Comparison of the absorption and emission band positions and their temperature dependence, emission quantum yields, and lifetimes with those for models containing only the [Pt] or the [Ir] units indicates hybrid excited states including features from both chromophores.
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