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- W4220793326 abstract "Three dinuclear iridium(III) cationic complexes with 2,6-furan-[imidazo(4,5-f)(1,10)phenanthroline] (H2bfip) as the bridged ligand, [(cf3ppy)2Ir(H2bfip)Ir(cf3ppy)2](PF6)2 (Ir1), [(cf3piq)2Ir(H2bfip)Ir(cf3piq)2](PF6)2 (Ir2), and [(cf3piq)2Ir(H2bfip)Ir(cf3ppy)2](PF6)2 (Ir3), were synthesized. They presented decent yellow to orange emission with quantum yields of 0.44–0.68 and lifetimes of 1.8–2.3 μs. Their frontier molecular orbital properties and transition details were further investigated by theoretical calculations. Upon addition of Cu2+ ions to the solutions of Ir1–Ir3, all these complexes show rapid phosphorescence quenching, and exclusively high selectivity to Cu2+ ions was demonstrated. The detection limit was as low as 1.1 × 10–7 M. 1H NMR and ESI-MS spectra indicated that Cu2+ ions coordinate with the nitrogen and oxygen atoms of the furan moiety on the newly designed bridged ligand H2bfip, which may serve as a driving force of the phosphorescence quenching." @default.
- W4220793326 created "2022-04-03" @default.
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- W4220793326 date "2022-03-11" @default.
- W4220793326 modified "2023-09-27" @default.
- W4220793326 title "Highly Luminescent Dinuclear Iridium(III) Complexes Containing Phenanthroline-Based Neutral Ligands as Chemosensors for Cu<sup>2+</sup> Ion" @default.
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- W4220793326 doi "https://doi.org/10.1021/acs.organomet.1c00617" @default.
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