#------------------------------------------------------------------------------ #$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: svn://www.crystallography.net/cod/cif/1/00/01/1000194.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_1000194 loop_ _publ_author_name 'Nguyen, N' 'Calage, Y' 'Varret, F' 'Ferey, G' 'Caignaert, V' 'Hervieu, M' 'Raveau, B' _publ_section_title ; The oxygen defect Perovskite Ca~3~ Mn~1.35~ Fe~1.65~ O~8.02~: a highly frustrated antiferromagnet ; _journal_coden_ASTM JSSCBI _journal_name_full 'Journal of Solid State Chemistry' _journal_page_first 398 _journal_page_last 405 _journal_paper_doi 10.1016/0022-4596(84)90118-X _journal_volume 53 _journal_year 1984 _chemical_formula_analytical 'Ca3 (Mn0.45 Fe0.55)3 O8.02' _chemical_formula_structural 'Ca3 Mn3 O8.02' _chemical_formula_sum 'Ca3 Mn3 O8.02' _chemical_name_systematic 'Calcium ferrate manganate' _space_group_IT_number 28 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 28 _symmetry_space_group_name_Hall 'P -2a -2a' _symmetry_space_group_name_H-M 'P m 2 a' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 5.332(2) _cell_length_b 11.13(4) _cell_length_c 5.455(2) _cell_volume 323.7 _refine_ls_R_factor_all 0.062 _cod_database_code 1000194 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,y,-z 1/2-x,y,z 1/2+x,y,-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 Ca1 Ca2+ 2 c 0.25 0.5 0.75 1. 0 d Ca2 Ca2+ 4 d 0.24 0.183 0.7 0.5 0 d Ca3 Ca2+ 4 d 0.24 0.834 0.7 0.5 0 d Mn1 Mn3+ 4 d 0.27 0.332 0.259 0.5 0 d Mn2 Mn3+ 2 c 0.25 0.665 0.255 1. 0 d Mn3 Mn3+ 4 d 0.232 0. 0.237 0.5 0 d O1 O2- 2 a 0. 0.329 0. 1. 0 d O2 O2- 2 a 0. 0.665 0. 1. 0 d O3 O2- 2 b 0. 0.33 0.5 1. 0 d O4 O2- 2 b 0. 0.66 0.5 1. 0 d O5 O2- 2 c 0.25 0.5 0.25 0.7 0 d O6 O2- 2 c 0.25 0.17 0.25 1. 0 d O7 O2- 2 c 0.25 0.829 0.25 1. 0 d O8 O2- 2 a 0. 0.01 0. 1. 0 d O9 O2- 2 b 0. 0.01 0.5 0.3 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ca2+ 2.000 Mn3+ 3.340 O2- -2.000