Structure of the 1:2 adducts of tellurium-, selenium-, and tin-(IV) tetrachlorides and tin(IV) tetrabromide with pyridine

Abstract

Single-crystal X-ray analysis of SnCl₄,2py confirms that this compound is an octahedrally co-ordinated trans molecular species. Single-crystal X-ray studies further show the corresponding adduct SnBr₄,2py to be isomorphous with the chloride. Previous work on the conductance of SeCl₄,2py in acetonitrile is in error. The adduct SeCl₄,2py is shown by X-ray powder photography to be isomorphous with the species mentioned above. Raman spectroscopy strongly suggests that SeCl₄,2py and TeCl₄,2py are isostructural.