[Li(NH3)4]3P11·5NH3: preparation and crystal structure of a zintl compound ammoniate with a very high ammonia content

Abstract

The ammoniate [Li(NH₃)₄]₃P₁₁·5NH₃, prepared from Cs₃P₁₁ and an exchange resin loaded with Li⁺ in liquid ammonia, forms a three-dimensional network of lithium tetraamine complexes and fee ammonia molecules of crystallisation linked by N–H⋯N hydrogen bonds, with undecaphosphatrishomocubane anions P₁₁^3– sitting in large cavities.