#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/60/1006024.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_1006024 loop_ _publ_author_name 'Rodriguez Carvajal, J' 'Vallet Regi, M' 'Gonzalez Calbet, J M' _publ_section_title ; Perovskite Threefold Superlattices: A Structure Determination of the A~3~ M~3~ O~8~ Phase ; _journal_coden_ASTM MRBUAC _journal_name_full 'Materials Research Bulletin' _journal_page_first 423 _journal_page_last 430 _journal_paper_doi 10.1016/0025-5408(89)90023-8 _journal_volume 24 _journal_year 1989 _chemical_formula_structural 'Ca3 Mn1.2 Fe1.8 O8' _chemical_formula_sum 'Ca3 Fe1.8 Mn1.2 O8' _chemical_name_systematic 'Calcium manganese iron oxide (3/1.2/1.8/8)' _space_group_IT_number 26 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 26 _symmetry_space_group_name_Hall 'P 2c -2c' _symmetry_space_group_name_H-M 'P c m 21' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 5.4761(2) _cell_length_b 11.1506(4) _cell_length_c 5.3603(2) _cell_volume 327.3 _refine_ls_R_factor_all 0.0808 _cod_database_code 1006024 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,-y,z -x,-y,1/2+z -x,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 Fe1 Fe3+ 2 e 0.3147(7) 0. 0.053(1) 1. 0 d Mn1 Mn4+ 4 k 0.258(6) 0.3314(2) 0. 0.6 0 d Fe2 Fe3+ 4 k 0.258(6) 0.3314(2) 0. 0.4 0 d Ca1 Ca2+ 2 f 0.242(1) 0.5 0.492(2) 1. 0 d Ca2 Ca2+ 4 k 0.2259(6) 0.1908(2) 0.518(1) 1. 0 d O1 O2- 2 a 0.355(3) 0. 0.425(3) 1. 0 d O2 O2- 2 f 0.325(3) 0.5 .000(4) 1. 0 d O3 O2- 4 k 0.177(2) 0.147(1) -0.023(3) 1. 0 d O4 O2- 4 g -0.009(3) 0.353(1) 0.248(5) 1. 0 d O5 O2- 4 h 0.480(3) 0.3038(9) 0.287(3) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Fe3+ 3.000 Mn4+ 3.830 Ca2+ 2.000 O2- -2.000