An azadithiolate bridged Fe2S2 complex as active site model of FeFe-hydrogenase covalently linked to a Re(CO)(3)(bpy)(py) photosensitizer aiming for light-driven hydrogen production
Release Time:2019-03-10 Hits:
Indexed by: Journal Article
Date of Publication: 2008-08-01
Journal: COMPTES RENDUS CHIMIE
Included Journals: SCIE
Volume: 11
Issue: 8
Page Number: 915-921
ISSN: 1631-0748
Key Words: bioinorganic chemistry; catalysis; light-driven hydrogen production; iron-sulfur complex
Abstract: In order to create photoactive catalysts for hydrogen production, a novel trimetallic Re-Fe2S2 complex 4 was synthesized by the coordination of the free -PPh2 group of the ligand of the rhenium photosensitizer 6 to an azadithiolate (ADT)-bridged diiron complex 8 with the assistance of the decarbonylation reagent Me3NO. Complex 4 was characterized by H-1, C-13, P-31 NMR and HRMS spectra. The IR, UV-vis and electrochemical data indicate some interactions between Re and Fe2S2 moieties, and the photo-induced electron transfer from the excited state of the Re moiety to the Fe2S2 catalyst is thermodynamically feasible.