Stabilization of a high-spin three-coordinate Fe(iii) imidyl complex by radical delocalization.

ABSTRACT: High-spin, late transition metal imido complexes have attracted significant interest due to their group transfer reactivity and catalytic C-H activation of organic substrates. Reaction of a new two-coordinate iron complex, Fe{N( ^t Bu)Dipp}₂ (1, Dipp = 2,6-diisopropylphenyl), with mesitylazide (MesN₃) afforded a three-coordinate Fe-imidyl complex, Fe{N( ^t Bu)Dipp}₂([double bond, length as m-dash]NMes) (2). X-ray crystallographic characterization of single crystals of 2 showed a long Fe-N distance of 1.761(1) Å. Combined magnetic and spectroscopic (Mössbauer and X-ray absorption near edge structure spectroscopy, XANES) characterization of 2 suggests that it has an S = 2 ground state comprising an S = 5/2 Fe(ii

SUBMITTER: Yang PC 

PROVIDER: S-EPMC9400638 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature