#------------------------------------------------------------------------------ #$Date: 2012-02-28 14:14:52 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35911 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/60/1006023.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_1006023 _chemical_name_systematic 'Tricalcium titanium diiron(III) oxide' _chemical_formula_structural 'Ca3 Ti Fe2 O8' _chemical_formula_sum 'Ca3 Fe2 O8 Ti' _publ_section_title ; Perovskite Threefold Superlattices: A Structure Determination of the A~3~ M~3~ O~8~ Phase ; loop_ _publ_author_name 'Rodriguez Carvajal, J' 'Vallet Regi, M' 'Gonzalez Calbet, J M' _journal_name_full 'Materials Research Bulletin' _journal_coden_ASTM MRBUAC _journal_volume 24 _journal_year 1989 _journal_page_first 423 _journal_page_last 430 _cell_length_a 5.5295(3) _cell_length_b 11.2045(6) _cell_length_c 5.4379(3) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 336.9 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P c m 21' _symmetry_Int_Tables_number 26 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,z' '-x,-y,1/2+z' '-x,y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Fe3+ 3.000 Ti4+ 4.000 Ca2+ 2.000 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 Fe3+ 2 a 0.309(2) 0. 0.050(2) 1. 0 d Ti1 Ti4+ 4 c 0.258(1) 0.3303(5) 0. 0.5 0 d Fe2 Fe3+ 4 c 0.258(1) 0.3303(5) 0. 0.5 0 d Ca1 Ca2+ 2 b 0.234(2) 0.5 0.486(4) 1. 0 d Ca2 Ca2+ 4 c 0.225(1) 0.1884(5) 0.526(3) 1. 0 d O1 O2- 2 a 0.398(6) 0. 0.410(6) 1. 0 d O2 O2- 2 b 0.316(5) 0.5 -0.010(7) 1. 0 d O3 O2- 4 c 0.169(3) 0.144(2) -0.018(5) 1. 0 d O4 O2- 4 c -0.010(5) 0.353(2) 0.227(7) 1. 0 d O5 O2- 4 c 0.469(5) 0.300(2) 0.281(6) 1. 0 d _refine_ls_R_factor_all 0.1281 _cod_database_code 1006023