Bis(triphenyltelluronium) hexachlorotellurate

Abstract

The title compound, (Ph3Te)2[TeCl6] or 2C18H15Te+·TeCl62−, was obtained as yellow hexagonal crystals from the reaction of Ph3TeCl with [(Ph3PO)2H]2[Te2Cl10]. The structure consists of discrete octahedral [TeCl6]2− anions, with site symmetry \overline 3, and trigonal pyramidal (Ph3Te)+ cations, with site symmetry 3. The weak Te⋯Cl secondary bonds of 3.527 (1) Å between the cation and anion expand the TePh3E coordination of the telluronium tellurium into a distorted TePh3Cl3E trigonal prism (E = electron lone pair).