AM_(NH4)2BeF4
Formula: N2 Be F4
Name: (NH4)2BeF4
Unit cell: 5.8 10.2 7.5 90.0 90.0 90.0 , V=443.70
Space group: PMCN (62)

Hultgren R , Zeitschrift fur Kristallographie , 88 (1934) p.233-237, The crystal structure of ammonium beryllium fluoride, (NH4)2BeF4