Triiron clusters derived from dinuclear complexes related to the active site of [Fe-Fe] hydrogenases: Steric effect of the dithiolate bridge on redox properties, a DFT analysis. - Université de Bretagne Occidentale Access content directly
Journal Articles Inorganic Chemistry Frontiers Year : 2021

Triiron clusters derived from dinuclear complexes related to the active site of [Fe-Fe] hydrogenases: Steric effect of the dithiolate bridge on redox properties, a DFT analysis.

Abstract

A series of triiron clusters [Fe3(CO)5(2-dppe)(µ-pdtR2)(µ-pdt)] featuring different combination of dithiolate bridges have been prepared by using dinuclear and mononuclear precursors, [Fe2(CO)6(µ-xdt)] (xdt = pdt, pdtEt2, pdtBn2, adtBn) and [Fe(CO)2(2-dppe)(2-pdt)]. Novel triiron compounds, featuring sterically crowded dithiolate bridges (pdtEt2, pdtBn2), were spectroscopically and structurally characterized. Their protonation and redox behaviours are discussed. The effect of the dithiolate bridges on the electrochemical properties (oxidation and reduction) of the complexes [Fe3(CO)5(2-dppe)(µ-xdt)(µ-pdt)] has been examined by cyclic voltammetry and rationalized by DFT calculations. Studies of the protonation of these species and their proton reduction behaviour were considered.
No file

Dates and versions

hal-03138212 , version 1 (11-02-2021)

Identifiers

Cite

Ahmad Hobballah, Federica Arrigoni, Catherine Elleouet, Claudio Greco, Maxime Laurans, et al.. Triiron clusters derived from dinuclear complexes related to the active site of [Fe-Fe] hydrogenases: Steric effect of the dithiolate bridge on redox properties, a DFT analysis.. Inorganic Chemistry Frontiers, 2021, ⟨10.1039/D1QI00006C⟩. ⟨hal-03138212⟩
51 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More