#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1000193.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_1000193 _chemical_name_systematic 'Iron fluoroferrate dihydrate' _chemical_formula_structural 'Fe Fe2 F8 (H2 O)2' _chemical_formula_sum 'H4 F8 Fe3 O2' _publ_section_title ; Idle spin behavior of the shifted hexagonal tungsten bronze type compounds Fe Fe~2~ F~8~ (H~2~ O)~2~ and Mn Fe~2~ F~8~ (H~2~ O)~2~ ; loop_ _publ_author_name 'Leblanc, M' 'Ferey, G' 'Calage, Y' 'De=Pape, R' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 53 _journal_year 1984 _journal_page_first 360 _journal_page_last 368 _cell_length_a 7.609(5) _cell_length_b 7.514(6) _cell_length_c 7.453(4) _cell_angle_alpha 90 _cell_angle_beta 118.21(3) _cell_angle_gamma 90 _cell_volume 375.5 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'C 1 2/m 1' _symmetry_Int_Tables_number 12 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,z' '-x,-y,-z' '-x,y,-z' '1/2+x,1/2+y,z' '1/2+x,1/2-y,z' '1/2-x,1/2-y,-z' '1/2-x,1/2+y,-z' loop_ _atom_type_symbol _atom_type_oxidation_number Fe2+ 2.000 Fe3+ 3.000 O2- -2.000 F1- -1.000 H1+ 1.000 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 Fe1 Fe2+ 2 b 0. 0.5 0. 1. 0 d Fe2 Fe3+ 4 f 0.25 0.25 0.5 1. 0 d O1 O2- 4 i 0.2423(9) 0. 0.0435(10) 1. 2 d F1 F1- 4 h 0. 0.2925(7) 0.5 1. 0 d F2 F1- 4 i 0.1845(6) 0. 0.4411(7) 1. 0 d F3 F1- 8 j 0.1277(6) 0.2952(4) 0.2138(5) 1. 0 d H1 H1+ 8 j -1. -1. -1. 1. 0 dum _refine_ls_R_factor_all 0.034