A μ-Phosphido Diiron Dumbbell in Multiple Oxidation States.

ABSTRACT: The reaction of the ferrous complex [LFe(NCMe)₂ ](OTf)₂ (1), which contains a macrocyclic tetracarbene as ligand (L), with Na(OCP) generates the OCP^- -ligated complex [LFe(PCO)(CO)]OTf (2) together with the dinuclear μ-phosphido complex [(LFe)₂ P](OTf)₃ (3), which features an unprecedented linear Fe-(μ-P)-Fe motif and a "naked" P-atom bridge that appears at δ=+1480 ppm in the ³¹ P NMR spectrum. 3 exhibits rich redox chemistry, and both the singly and doubly oxidized species 4 and 5 could be isolated and fully characterized. X-ray crystallography, spectroscopic studies, in combination with DFT computations provide a comprehensive electronic structure description and show that the Fe-(μ-P)-Fe core is highly covalent and struct

SUBMITTER: Ghosh M 

PROVIDER: S-EPMC6790664 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature