Reaction of the tri(μ-sulfido)triiron(iii) tris(β-diketiminate) cyclophane complex, FeSL (1), or of the di(μ-sulfido)diiron(iii) complex FeSHL (5), with the related tri(bromide)triiron(ii) complex FeBrL (2) results in electron and ligand redistribution to yield the mixed-ligand multiiron complexes, including FeBrSL (3) and FeBrSHL (4). The cleavage and redistribution observed in these complexes is reminiscent of necessary Fe-S bond cleavage for substrate activation in nitrogenase enzymes, and provides a new perspective on the lability of Fe-S bonds in FeS clusters.
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| http://dx.doi.org/10.1039/d0dt03805a | DOI Listing |
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