Abstract
The open-shell iron pentacarbonyl cation [Fe(CO)(5) ](.+) was isolated by deelectronation, i.e., the single-electron oxidation of the parent neutral Fe(CO)(5) using [phenazine(F) ](.+) as the [Al(OR(F) )(4) ](-) and [F-{Al(OR(F) )(3) }(2) ](-) salt (R(F) =C(CF(3) )(3) ; phenazine(F) =perfluoro-5,10-bis(perfluorophenyl)-5,10-dihydrophenazine). [Fe(CO)(5) ](.+) [Al(OR(F) )(4) ](-) was fully characterized (scXRD analysis, IR, NMR, EPR, (57) Fe spectroscopy, CV and SQUID magnetization study) and, apart from being a compound of fundamental interest, may serve as a precursor for low-valent iron coordination chemistry.