#------------------------------------------------------------------------------ #$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/23/2002358.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_2002358 loop_ _publ_author_name 'Leib, W' 'Mueller-Buschbaum, Hk' _publ_section_title ; Zur Verbindungsbildung MO: M2 O3; eine neue Form von Ba Fe2 O4 mit aufgefuellter Tridymitstruktur ; _journal_name_full ; Zeitschrift fuer Anorganische und Allgemeine Chemie ; _journal_page_first 71 _journal_page_last 77 _journal_paper_doi 10.1002/zaac.19865380708 _journal_volume 538 _journal_year 1986 _chemical_formula_structural 'Ba Fe2 O4' _chemical_formula_sum 'Ba Fe2 O4' _chemical_name_systematic 'Barium diiron tetraoxide' _space_group_IT_number 62 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 62 _symmetry_space_group_name_Hall '-P 2n 2a' _symmetry_space_group_name_H-M 'P m c n' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 16 _cell_length_a 17.34698(390) _cell_length_b 9.3358(24) _cell_length_c 10.8818(19) _cell_volume 1762.3 _refine_ls_R_factor_all 0.087 _cod_database_code 2002358 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2-x,1/2-y,1/2+z 1/2+x,-y,-z -x,1/2+y,1/2-z -x,-y,-z 1/2+x,1/2+y,1/2-z 1/2-x,y,z x,1/2-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 Ba1 Ba2+ 4 c 0.25 0.2586(4) 0.8826(3) 1. 0 d Ba2 Ba2+ 4 c 0.25 0.7192(4) 0.1426(3) 1. 0 d Ba3 Ba2+ 8 d 0.9892(1) 0.2237(3) 0.8811(2) 1. 0 d Fe1 Fe3+ 8 d 0.3521(2) 0.4102(6) 0.6363(5) 1. 0 d Fe2 Fe3+ 8 d 0.3518(3) 0.9295(5) 0.8838(5) 1. 0 d Fe3 Fe3+ 8 d 0.3861(3) 0.9123(6) 0.3895(5) 1. 0 d Fe4 Fe3+ 8 d 0.0941(3) 0.4117(6) 0.1355(5) 1. 0 d O1 O2- 8 d 0.642(1) 0.081(3) 0.777(3) 1. 0 d O2 O2- 8 d 0.617(1) 0.748(4) 0.272(2) 1. 0 d O3 O2- 8 d 0.643(2) 0.932(3) 0.515(3) 1. 0 d O4 O2- 8 d 0.604(1) 0.075(3) 0.273(2) 1. 0 d O5 O2- 8 d 0.647(1) 0.256(3) 0.536(2) 1. 0 d O6 O2- 8 d 0.600(2) 0.563(3) 0.513(3) 1. 0 d O7 O2- 8 d 0.492(2) 0.622(4) 0.892(3) 1. 0 d O8 O2- 4 c 0.25 0.118(4) 0.107(4) 1. 0 d O9 O2- 4 c 0.25 0.530(4) 0.349(4) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Fe3+ 3.000 O2- -2.000