#------------------------------------------------------------------------------ #$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/04/1000446.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1000446 loop_ _publ_author_name 'Croguennec, L' 'Deniard, P' 'Brec, R' 'Couzi, M' 'Sourisseau, C' 'Fourquet, J L' 'Calage, Y' _publ_section_title ; Structural and spectroscopic evidence for hydrogen bonding induced (N H4)(+) cation ordering in $-beta-(N H4)2 Fe F5 at low temperature ; _journal_coden_ASTM JSSCBI _journal_name_full 'Journal of Solid State Chemistry' _journal_page_first 189 _journal_page_last 197 _journal_paper_doi 10.1006/jssc.1997.7269 _journal_volume 131 _journal_year 1997 _chemical_formula_structural '(N H4)2 (Fe F5)' _chemical_formula_sum 'F5 Fe H8 N2' _chemical_name_systematic ; Diammonium catena-pentafluoroferrate(III) - $-beta ; _space_group_IT_number 62 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 62 _symmetry_space_group_name_Hall '-P 2ac 2n' _symmetry_space_group_name_H-M 'P n m a' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 6.3269(5) _cell_length_b 7.6076(2) _cell_length_c 10.9802(9) _cell_volume 528.5 _refine_ls_R_factor_all 0.013 _cod_original_formula_sum 'H8 F5 Fe N2' _cod_database_code 1000446 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2-y,1/2-z -x,1/2+y,-z 1/2-x,-y,1/2+z -x,-y,-z 1/2-x,1/2+y,1/2+z x,1/2-y,z 1/2+x,y,1/2-z loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag N1 N3- 4 c 0.442(4) 0.25 0.198(3) 1. 4 d N2 N3- 4 c 0.512(4) 0.25 0.854(3) 1. 4 d Fe1 Fe3+ 4 a 0. 0. 0. 1. 0 d F1 F1- 4 c 0.081(1) 0.25 -0.002(2) 1. 0 d F2 F1- 8 d 0.225(2) 0.045(1) 0.442(1) 1. 0 d F3 F1- 8 d 0.102(2) 0.546(2) 0.163(1) 1. 0 d H1 H1+ 8 d 0.426(7) 0.3573 0.872(8) 1. 0 d H2 H1+ 4 c 0.64(1) 0.25 0.90(1) 1. 0 d H3 H1+ 4 c 0.55(2) 0.25 0.766(5) 1. 0 d H4 H1+ 8 d -1. -1. -1. 2. 0 dum loop_ _atom_type_symbol _atom_type_oxidation_number N3- -3.000 Fe3+ 3.000 F1- -1.000 H1+ 1.000