#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1011264.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_1011264 _chemical_name_systematic 'Iron manganese(IV) oxide' _chemical_name_mineral 'Bixbyite C' _chemical_compound_source 'from Simpson, Utah, USA' _chemical_formula_structural 'Fe Mn O3' _chemical_formula_sum 'Fe Mn O3' _publ_section_title ; Ueber die Kristallstruktur von Bixbyit, sowie vom kuenstlichen Mn2 O3. ; _publ_author_name 'Zachariasen, W' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 67 _journal_year 1928 _journal_page_first 455 _journal_page_last 464 _cell_length_a 9.35(2) _cell_length_b 9.35(2) _cell_length_c 9.35(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 817.4 _cell_formula_units_Z 16 _exptl_crystal_density_meas 4.95 _symmetry_space_group_name_H-M 'I 21 3' _symmetry_Int_Tables_number 199 _symmetry_cell_setting cubic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'y,z,x' 'z,x,y' '1/2+x,1/2-y,-z' '1/2+y,1/2-z,-x' '1/2+z,1/2-x,-y' '-x,1/2+y,1/2-z' '-y,1/2+z,1/2-x' '-z,1/2+x,1/2-y' '1/2-x,-y,1/2+z' '1/2-y,-z,1/2+x' '1/2-z,-x,1/2+y' '1/2+x,1/2+y,1/2+z' '1/2+y,1/2+z,1/2+x' '1/2+z,1/2+x,1/2+y' 'x,-y,1/2-z' 'y,-z,1/2-x' 'z,-x,1/2-y' '1/2-x,y,-z' '1/2-y,z,-x' '1/2-z,x,-y' '-x,1/2-y,z' '-y,1/2-z,x' '-z,1/2-x,y' loop_ _atom_type_symbol _atom_type_oxidation_number Fe2+ 2.000 Mn4+ 4.000 O2- -2.000 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+ 8 a 0.25 0.25 0.25 0.5 0 d Fe2 Fe2+ 12 b 0.02 0. 0.25 0.5 0 d Fe3 Fe2+ 12 b 0.54 0. 0.25 0.5 0 d Mn1 Mn4+ 8 a 0.25 0.25 0.25 0.5 0 d Mn2 Mn4+ 12 b 0.02 0. 0.25 0.5 0 d Mn3 Mn4+ 12 b 0.54 0. 0.25 0.5 0 d O1 O2- 24 c 0.125 0.135 0.395 1. 0 d O2 O2- 24 c 0.1 0.358 0.373 1. 0 d