The influences of carbon donor ligands on biomimetic multi-iron complexes for N₂ reduction.

ABSTRACT: The active site clusters of nitrogenase enzymes possess the only examples of carbides in biology. These are the only biological FeS clusters that are capable of reducing N₂ to NH₄ ⁺, implicating the central carbon and its interaction with Fe as important in the mechanism of N₂ reduction. This biological question motivates study of the influence of carbon donors on the electronic structure and reactivity of unsaturated, high-spin iron centers. Here, we present functional and structural models that test the impacts of carbon donors and sulfide donors in simpler iron compounds. We report the first example of a diiron complex that is bridged by an alkylidene and a sulfide, which serves as a high-fidelity structural and spectroscopic model of a two-ir

SUBMITTER: Nagelski AL 

PROVIDER: S-EPMC8163302 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature