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- W2092912299 endingPage "6933" @default.
- W2092912299 startingPage "6924" @default.
- W2092912299 abstract "Bimetallic [Ir(COD)Cl] and [Ir(ppy)(2)] (COD = 1,5-cyclooctadiene; ppy = 2-phenylpyridyl) complexes bridged by 1,7-dimethyl-3,5-diphenylbenzobis(imidazolylidene) (1), in addition to their monometallic analogues supported by 1-methyl-3-phenylbenzimidazolylidene (2), were synthesized and studied. Electrochemical analyses indicated that 1 facilitated moderate electronic coupling between [Ir(COD)Cl] units (DeltaE = approximately 60 mV), but not [Ir(ppy)(2)]. The metal-based oxidation potentials for the bimetallic complexes were within 20 mV of those for their monometallic analogues. Furthermore, spectroscopic analyses of the [Ir(ppy)(2)] bimetallic and monometallic complexes revealed nearly identical phosphorescence profiles, indicating that carbene coordination does not affect the energy of the emissive states. Collectively, these results suggest that N-heterocyclic carbenes (NHCs) such as 1 could link together two emissive fragments without altering their fundamental phosphorescence profiles. Ultimately, employing multitopic NHCs as non-interfering molecular connectors could facilitate the rational design of new phosphorescent materials as well as second-generation phosphor dopants." @default.
- W2092912299 created "2016-06-24" @default.
- W2092912299 creator A5001289712 @default.
- W2092912299 creator A5078489286 @default.
- W2092912299 creator A5078891200 @default.
- W2092912299 creator A5079868859 @default.
- W2092912299 creator A5084310453 @default.
- W2092912299 date "2009-06-19" @default.
- W2092912299 modified "2023-10-10" @default.
- W2092912299 title "Bimetallic N-Heterocyclic Carbene−Iridium Complexes: Investigating Metal−Metal and Metal−Ligand Communication via Electrochemistry and Phosphorescence Spectroscopy" @default.
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