A Convenient Way to Novel FeIV Complexes with Mixed N/S/P Coordination Spheres and “Innocent” Ligands

A simple one-pot reaction with readily accessible compounds [Eq. (a)] provides a route to high-valent molecular FeIV complexes with a N/S/P coordination sphere. The FeIV character of the metal center, which is stabilized by π-donor bonds from the lone pairs of electrons of the amide N and thiolate S donors, is confirmed by spectroscopic and structural data of 1 (R  nPr). The L4− ligand is “innocent”!