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Photonics of a Conjugated Organometallic Pt–Ir Polymer and Its Model Compounds Exhibiting Hybrid CT Excited States
Author(s) -
Soliman Ahmed M.,
Fortin Daniel,
ZysmanColman Eli,
Harvey Pierre D.
Publication year - 2012
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100721
Subject(s) - hexafluorophosphate , iridium , conjugated system , excited state , platinum , chromophore , polymerization , photochemistry , polymer , bipyridine , polymer chemistry , materials science , oligomer , chemistry , crystallography , catalysis , organic chemistry , physics , atomic physics , crystal structure , ionic liquid
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.