A Ru(II)–Mn(I) Supramolecular Photocatalyst for CO<sub>2</sub> Reduction
David C. Fabry, Hiroki Koizumi, Debashis Ghosh, Yasuomi Yamazaki, Hiroyuki Takeda, Yusuke Tamaki, Osamu Ishitani
Abstract
Supramolecular photocatalysts for CO2 reduction, constituted of redox photosensitizer, catalyst, and bridging ligand, play crucial roles in constructing hybrid systems with solid materials and photoelectrochemical cells for artificial photosynthesis. We report the first supramolecular photocatalysts with a Mn(I) catalyst [MnBr(CO)3(BL)] and photosensitizer unit(s) [Ru(dmb)2(BL)]2+ (dmb = 4,4′-dimethyl-2,2′-bipyridine, BL = bridging ligand). A 1:1 ratio between the redox photosensitizer and catalyst units showed higher activity for HCOOH formation in comparison to the corresponding mixed system of mononuclear complexes.
Topics & Concepts
PhotosensitizerChemistrySupramolecular chemistryRedoxCatalysisBridging ligandPhotocatalysisLigand (biochemistry)Artificial photosynthesisPhotochemistryElectrochemistryBridging (networking)CrystallographyInorganic chemistryCrystal structurePhysical chemistryOrganic chemistryElectrodeComputer networkBiochemistryComputer scienceReceptorCO2 Reduction Techniques and CatalystsCarbon dioxide utilization in catalysisMetal-Organic Frameworks: Synthesis and Applications