The first alkali metal hydroxide-ammoniate, cesium hydroxide-ammoniate (1:1), CsOH·NH3, synthesis and crystal structure

Abstract

Cesium hydroxide-ammoniate (1:1), CsOH·NH3, was obtained as a side product in the reaction of cesium hydride, CsH and telluric acid, Te(OH)6 in liquid ammonia at −38 °C. The compound crystallizes as colorless crystals in the monoclinic space group P21/c with Z = 8, a = 4.391(9) A, b = 18.593(4) A, c = 8.141 (16) A, β = 90.37(3)°, and V = 664.6(24) A3. The crystal structure was solved from single crystal X-ray data. The structure contains a three-dimensional network built up by contacts between cesium cations and hydroxide anions and ammonia molecules, which in turn are connected by O–H···N and N–H···O hydrogen bonds.