Carbon Dioxide Insertion into Bridging Iron Hydrides: Kinetic and Mechanistic Studies.

ABSTRACT: The reduction of CO₂ to formic acid by transition metal hydrides is a potential pathway to access reactive C1 compounds. To date, no kinetic study has been reported for insertion of a bridging hydride in a weak-field ligated complex into CO₂; such centers have relevance to metalloenzymes that catalyze this reaction. Herein, we report the kinetic study of the reaction of a tri(μ-hydride)triiron(II/II/II) cluster supported by a tris(β-diketimine) cyclophane (1) with CO₂ monitored by ¹H-NMR and temperature-controlled UV-vis spectroscopy. We found that 1 reacts with CO₂ to traverse the reported monoformate (1-CO ₂ ) and a diformate complex (1-2CO ₂ ) at 298 K in toluene

SUBMITTER: Hong DH 

PROVIDER: S-EPMC6884086 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature