F5 Fe H8 N2 Croguennec L, Deniard P, Brec R, Couzi M, Sourisseau C, Fourquet J, Calage Y Journal of Solid State Chemistry 131 (1997) 189-197 Structural and spectroscopic evidence for hydrogen bonding induced (N H4)(+) cation ordering in beta-(N H4)2 Fe F5 at low temperature _cod_database_code 1000445 _database_code_amcsd 0013924 6.3385 7.6191 11.0298 90 90 90 Pnma atom x y z N1 .428 .25 .1958 N2 .510 .25 .8584 Fe1 0 0 0 F1 .0880 .25 .0082 F2 .2271 .0521 .4367 F3 .1051 .5265 .1595