F2 H5 N Pauling L Zeitschrift fur Kristallographie 85 (1933) 380-391 The crystal structure of ammonium hydrogen fluoride N H4 H F2 _cod_database_code 1010616 _database_code_amcsd 0017498 8.33 8.14 3.68 90 90 90 Pman atom x y z N1 .25 .25 .56 F1 .142 0 0 F2 .5 .132 .135