Manamperi Hemanthi D, Moore Curtis E, Turro Claudia
Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43214, USA.
Chem Commun (Camb). 2021 Feb 14;57(13):1635-1638. doi: 10.1039/d0cc07659g. Epub 2021 Jan 19.
A series of Rh(ii,ii) complexes were shown to electrocatalytically reduce CO to HCOOH. Electrochemical and spectroelectrochemical studies reveal a correlation between catalytic selectivity and efficiency with the steric bulk at the axial sites afforded by the bridging ligands. Mechanistic studies point to the presence of a Rh(ii,i)-H hydride as a key intermediate in the catalytic cycle.
一系列二价铑（II,II）配合物被证明能将一氧化碳电催化还原为甲酸。电化学和光谱电化学研究表明，催化选择性和效率与桥连配体在轴向位点提供的空间位阻之间存在关联。机理研究指出，铑（II,I）-氢化物作为催化循环中的关键中间体存在。
