An Unexpected Iron (II)-Based Homogeneous Catalytic System for Highly Efficient CO₂-to-CO Conversion under Visible-Light Irradiation.

ABSTRACT: We present two as-synthesized Fe(II)-based molecular catalysts with 1,10-phenanthroline (phen) ligands; Fe(phen)₃Cl₂ (1) and [Fe(phen)₂(CH₃CH₂OH)Cl]Cl (2), and their robust catalytic properties for the conversion of CO₂ to CO in DMF/TEOA (DMF = N,N'-dimethylformamide; TEOA = triethanolamine) solution containing Ru(bpy)₃²⁺ and BIH (1,3-dimethyl-2-phenyl-2,3- dihydro-1H-benzo-[d]-imidazole). High turnover numbers (TONs) of 19,376 were achieved with turnover frequencies (TOFs) of 3.07 s^-1 for complex 1 (1.5 × 10^-7 M). A quantum efficiency of 0.38% was observed after 5 h irradiated by 450 nm monochromatic light. The generation rate of CO_2<

SUBMITTER: Fu ZC 

PROVIDER: S-EPMC6571623 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature