Neutral thiolates of antimony(III) and bismuth(III)

Abstract

A range of bismuth(III) and antimony(III) thiolates, Bi(SR)₃(R = C₆F₅, 4-MeC₆H₄, 2,6-Me₂C₆H₃ or 3,5-Me₂C₆H₃) and Sb(SR)₃(R = 4-MeC₆H₄ or 3,5-Me₂C₆H₃) has been synthesised and the structures of the two antimony complexes have been determined. Both structures reveal a trigonal-pyramidal antimony centre bonded to three thiolate groups with, for the 4-MeC₆H₄ complex, additional intermolecular Sb ⋯ S interactions and, for the 3,5-Me₂C₆H₃ complex, intermolecular arene to antimony interactions. The syntheses and structures of the organotransition-metal complexes [Bi(SC₆F₅){M(CO)₃(η-C₅H₅)}₂](M = Mo or W) are also reported in which the bismuth centre is bonded to one SC₆F₅ group and two M(CO)₃(η-C₅H₅) fragments with no short intermolecular interactions.