Synthesis, infrared and 121 Sb Mössbauer spectra of some Antimony(III) Thiocyanate Complexes

The first isolation of an antimony(III) thiocyanate complex salt, [(CH 3 ) 4 N][Sb(CNS) 4 ] ( I ), and of two adducts of the Sb(CNS) 3 formal unit with potentially tridentate nitrogen donors, Sb(CNS) 3 tpta ( II ) and [Sb(CNS) 3 ] 3 (dqp) 2 ( III ), is described. In these derivatives, infrared and Mössbauer spectral data are essentially indicating the predominant presence of N‐bonded thiocyanate. For complex I , the occurrence also of groups bridging through the nitrogen atom is advanced.