Preparation and crystal structures of the beryllium ammines [Be(NH3)4]X2 (X = Br, I, CN, SCN, N3) and Be(NH3)2X'2 (X' = Cl, Br, I)

Abstract

Tetraammineberyllium halides and pseudo-halides [Be(NH₃)₄]X₂ (X = Cl, Br, I, CN, SCN, N₃) as well as Be(NH₃)₂F₂ have been prepared from beryllium metal and NH₄X or NH₄F in liquid ammonia at ambient temperature, respectively. Diammineberyllium halides Be(NH₃)₂X'₂ (X' = Cl, Br, I) were synthesized at 300 °C from Be and NH₄X'. The obtained compounds were characterised via X-ray diffraction, and IR and Raman spectroscopy and their thermal decomposition was studied by TGA.