A homoleptic Fe(iv) ketimide complex with a low-lying excited state.

ABSTRACT: The reaction of 4 equiv. of Li(N[double bond, length as m-dash]C( ^t Bu)Ph) with Fe^IICl₂ results in isolation of [Li(Et₂O)]₂[Fe^II(N[double bond, length as m-dash]C( ^t Bu)Ph)₄] (1), in good yields. The reaction of 1 with 1 equiv. of I₂ leads to formation of [Fe^IV(N[double bond, length as m-dash]C( ^t Bu)Ph)₄] (2), in moderate yields. ⁵⁷Fe Mössbauer spectroscopy confirms the Fe(iv) oxidation state of 2, and X-ray crystallography reveals that 2 has a square planar coordination geometry along with several intramolecular H⋯C interactions. Furthermore, SQUID magnetometry indicates a small magnetic moment at room temperature, suggestive

SUBMITTER: Hertler PR 

PROVIDER: S-EPMC11411412 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature