Antimony-121 Mössbauer spectra of six-co-ordinate di- and tri-organoantimony(V) compounds

Abstract

The ¹²¹Sb Mössbauer spectra are reported for a series of organoantimony(V) compounds of the type [SbR₃(trid)] and [SbClR₂(trid)](R = Me or Ph, trid = tridentate ligand with ONO or ONS donor atoms). The compounds have an effective octahedral geometry with a meridionally disposed tridentate ligand and a T-shaped SbR₃ or trans-SbR₂ moiety. The observed parameters are fully consistent with a simple point-charge interpretation.