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.

中文翻译：

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Ru（II）–Mn（I）超分子光催化剂用于CO ₂还原

由氧化还原光敏剂，催化剂和桥联配体组成的用于还原CO _2的超分子光催化剂在构建用于固体光合作用的固体材料和光电化学电池的杂化体系中起着至关重要的作用。我们报告了第一个超分子光催化剂，带有Mn（I）催化剂[MnBr（CO）₃（BL）]和光敏剂单元[Ru（dmb）₂（BL）] ²⁺（dmb = 4,4'-二甲基-2,2'-联吡啶，BL =桥接配体）。与相应的单核络合物混合体系相比，氧化还原光敏剂和催化剂单元之间的1：1比例显示出较高的HCOOH形成活性。