Inorganic Chemistry Communication
Inorganic Chemistry Communication
4 years ago

Development of a ruthenium multi-pyridine complex as photosensitizer for highly efficient light driven water oxidation

Development of a ruthenium multi-pyridine complex as photosensitizer for highly efficient light driven water oxidation
As we all know, the photosensitizer is the vital role in photocatalytic water oxidation system. In this paper, a novel [Ru(bpy)2(tpphz)](PF6)2 complex (PS1) was synthesized and characterized fully. And, it displayed a higher photoactivity (TON, 110) than [Ru(bpy)3](PF6)2 (PS2) (TON, 62) and [Ru(bpy)2(dcb)](PF6)2 (PS3) (TON, 82) for water oxidation in a three-component system with Ru(bda)(isoq)2 as catalyst. The main reason for the enhancement of photocatalytic activity should be that the π-π stacking supramolecular interaction between the π-tpphz ligand of the PS1 and the π-isoq ligand of the catalyst increased the intermolecular interaction between PS1 and catalyst, and promoted the molecular aggregation and accelerated valid electronic transmission. Nevertheless, a modest driving force of PS1 for photocatalysis water oxidation should be another contribution.

Publisher URL: www.sciencedirect.com/science

DOI: S1387700317305130

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