Crystal structure of tris (phenylammonium) chloride pentachloroantimonate (III) monohydrate

Abstract

The tris (phenylammonium) chloride pentachloroantimonate (III) monohydrate salt is triclinic $P\bar 1$ with the following cell parameters: a = 9.4283(3), b = 11.4482(3), c = 13.1748(3)Å, α = 113.493(2), β = 90.381(2), γ = 97.331(1)°, V = 1290.86(6)ų, with Z = 2 formula units. The structure consists of [C₆H₅NH₃]⁺ cations, water molecules, Cl⁻ anions, and SbCl₅ square pyramids. Hydrogen bonds, established through water molecule, link the anions [SbCl₅]²⁻ and Cl⁻ and make an infinite chain in the [011] direction. Chains are linked together via another hydrogen bond network originating from the ammonium groups. A distortion of the SbCl₅ square pyramid can be attributed to the stereo activity of the Sb(III) lone electron pair.