Bio-inspired CO₂ reduction by a rhenium tricarbonyl bipyridine-based catalyst appended to amino acids and peptidic platforms: incorporating proton relays and hydrogen-bonding functional groups.

ABSTRACT: Herein, we report a new approach to bio-inspired catalyst design. The molecular catalyst employed in these studies is based on the robust and selective Re(bpy)(CO)₃Cl-type (bpy = 2,2'-bipyridine) homogeneous catalysts, which have been extensively studied for their ability to reduce CO₂ electrochemically or photochemically in the presence of a photosensitizer. These catalysts can be highly active photocatalysts in their own right. In this work, the bipyridine ligand was modified with amino acids and synthetic peptides. These results build on earlier findings wherein the bipyridine ligand was functionalized with amide groups to promote dimer formation and CO₂ reduction by an alternate bimolecular mechanism at lower overpotential (ca. 250 mV) than the more com

SUBMITTER: Chabolla SA 

PROVIDER: S-EPMC5604230 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature