Complexes with ligands containing group VB and VIB atoms. Part IV. Dialkyl sulphide complexes of rhodium(III) and iridium(III) halides

Abstract

A structural investigation of compounds of the type MX₃L₃(M = Rh or Ir; X = Cl, Br, or I; L = dialkyl sulphide) has been carried out. The use of simple sulphides, L = Me₂S, Et₂S, C₄H₈S, or C₅H₁₀S resulted in the formation of stable, crystalline solids facilitating the assignment of stereochemistry. I.r., u.v., ¹H n.m.r., and dipole moment measurements have been used to clearly show that the compounds obtained by the reaction of the appropriate metal halide with the dialkyl sulphide all have a common octahedral meridional configuration.