Sensitized Photocatalytic CO₂ Reduction With Earth Abundant 3d Metal Complexes Possessing Dipicolyl-Triazacyclononane Derivatives.

ABSTRACT: Complexes based on nitrogen and sulfur containing ligands involving 3d metal centers are known for the electrocatalytic reduction of CO_2. However, photocatalytical activation has rarely been investigated. We herein present results on the light-driven CO₂ reduction using either Ir(dFppy)₃ [Ir, dFppy = 2-(4,6-difluorophenyl)pyridine] or [Cu(xant)(bcp)]⁺, (Cu, xant = xantphos, bcp = bathocuproine) as photosensitizer in combination with TEA (triethylamine) as sacrificial electron donor. The 3d metal catalysts have either dptacn (dipicolyl-triazacyclononane, L ^N3 ) or dpdatcn (dipicolyl-diazathiocyclononane, L ^N2S ) as ligand framework and Fe³⁺, Co³⁺ or Ni²⁺

SUBMITTER: Obermeier M 

PROVIDER: S-EPMC8514774 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature