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- W4308807247 abstract "A heterodimetallic Ir-Re system displaying excellent photocatalytic activity under diffused sunlight. Herein, we present an example of heterodimetallic iridium-rhenium system [(ppy) 2 Ir III ( µ -phpy)Re I (CO) 3 Cl] + ( [3] + ) using a semi-flexible phenanthroline-pyrazine-based ligand exhibiting excellent photocatalytic activity towards photodecomposition of congo red dye. The formation of heterodimetallic [3] + was confirmed by HRMS, 1 H- 1 H COSY, and 13 C NMR spectroscopy. The complexes are luminescent in CH 3 CN solvent. The lowest energy absorption band for complex [3] + is 1 M Re/Ir LLCT in nature (where both Ir and Re contribute), whereas, for mononuclear [1] + and [2] , it is 1 MLLCT corresponding to the individual metal centers. The spin density analysis suggests that the emission bands originate from 3 MLLCT states. The heterodimetallic [3] + display excellent photocatalytic activity even under diffused sunlight, whereas, the monometallic analogue [(ppy) 2 Ir(phpy)] + ( [1] + ) and [(phpy)Re(CO) 3 Cl] ( [2] ) are showing poorer activity under visible light photoirradiation. The mechanistic investigation suggests that the reactive oxygen species ( • OH/O 2 • − ), generated during the photoexcitation of [3] + , is responsible for photodecomposition of dye molecules." @default.
- W4308807247 created "2022-11-15" @default.
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- W4308807247 date "2023-03-01" @default.
- W4308807247 modified "2023-09-29" @default.
- W4308807247 title "Heterodimetallic iridium-rhenium system: Synthesis, computational and photocatalytic aspects" @default.
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- W4308807247 doi "https://doi.org/10.1016/j.jphotochem.2022.114407" @default.
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