#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1000405.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_1000405 _chemical_name_systematic 'Iron Iron(III) pentafluoride dihydrate' _chemical_formula_structural 'Fe2 F5 (H2 O)2' _chemical_formula_sum 'H4 F5 Fe2 O2' _publ_section_title ; Ordered magnetic frustration: IV. The two magnetic structures of the inverse weberite Fe2 F5 (H2 O)2: an example of the thermal evolution of the frustration character ; loop_ _publ_author_name 'Laligant, Y' 'Leblanc, M' 'Pannetier, J' 'Ferey, G' _journal_name_full 'Journal of Physics C' _journal_coden_ASTM JPSOAW _journal_volume 19 _journal_year 1986 _journal_page_first 1081 _journal_page_last 1095 _cell_length_a 7.469(1) _cell_length_b 10.927(1) _cell_length_c 6.602(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 538.8 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'I m m a' _symmetry_Int_Tables_number 74 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,-z' 'x,1/2+y,-z' 'x,1/2-y,z' '-x,-y,-z' '-x,y,z' '-x,1/2-y,z' '-x,1/2+y,-z' '1/2+x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2+x,-y,1/2+z' '1/2-x,1/2-y,1/2-z' '1/2-x,1/2+y,1/2+z' '1/2-x,-y,1/2+z' '1/2-x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Fe2+ 2.000 Fe3+ 3.000 F1- -1.000 O2- -2.000 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+ 4 a 0. 0. 0. 1. 0 d Fe2 Fe3+ 4 c 0.25 0.25 0.25 1. 0 d F1 F1- 16 j 0.2034(3) 0.1257(3) 0.0496(1) 1. 0 d F2 F1- 4 e 0. 0.25 0.3368(2) 1. 0 d O1 O2- 8 h 0.5 0.5658(4) 0.1994(2) 1. 0 d H1 H1+ 16 j 0.3941(7) 0.5878(7) 0.1188(8) 1. 0 d _refine_ls_R_factor_all 0.0651