#------------------------------------------------------------------------------ #$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: svn://www.crystallography.net/cod/cif/1/1001601.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_1001601 _chemical_name_systematic ; Europium barium cobalt copper oxide (2.5/2.5/2/3/12) ; _chemical_formula_structural 'Eu2.5 Ba2.5 Co2 Cu3 O12' _chemical_formula_sum 'Ba2.5 Co2 Cu3 Eu2.5 O12' _publ_section_title ; Eu~2.5~Ba~2.5~Co~2~Cu~3~O~12~, an intergrowth of the "112" and "123" structures ; loop_ _publ_author_name 'Barbey, L' 'Domenges, B' 'Nguyen, N' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 111 _journal_year 1994 _journal_page_first 238 _journal_page_last 246 _cell_length_a 3.8935(2) _cell_length_b 3.8935(2) _cell_length_c 19.08499(200) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 289.3 _cell_formula_units_Z 1 _symmetry_space_group_name_H-M 'P 4/m m m' _symmetry_Int_Tables_number 123 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '-x,y,z' 'x,-y,z' '-y,x,z' 'y,-x,z' 'y,x,z' '-y,-x,z' '-x,-y,-z' 'x,y,-z' 'x,-y,-z' '-x,y,-z' 'y,-x,-z' '-y,x,-z' '-y,-x,-z' 'y,x,-z' loop_ _atom_type_symbol _atom_type_oxidation_number Eu3+ 3.000 Ba2+ 2.000 Cu2+ 2.500 Co2+ 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 Eu1 Eu3+ 2 h 0.5 0.5 0.1996(6) 1. 0 d Ba1 Ba2+ 1 c 0.5 0.5 0. 1. 0 d Eu2 Eu3+ 2 h 0.5 0.5 0.3892(3) 0.25 0 d Ba2 Ba2+ 2 h 0.5 0.5 0.3892(3) 0.75 0 d Cu1 Cu2+ 1 b 0. 0. 0.5 0.333 0 d Co1 Co2+ 1 b 0. 0. 0.5 0.667 0 d Cu2 Cu2+ 2 g 0. 0. 0.2934(9) 1. 0 d Cu3 Cu2+ 2 g 0. 0. 0.1077(8) 0.333 0 d Co2 Co2+ 2 g 0. 0. 0.1077(8) 0.667 0 d O1 O2- 1 a 0. 0. 0. 1. 0 d O2 O2- 4 i 0.5 0. 0.122 1. 0 d O3 O2- 4 i 0.5 0. 0.277 1. 0 d O4 O2- 2 g 0. 0. 0.407 1. 0 d O5 O2- 2 e 0.5 0. 0.5 0.5 0 d _refine_ls_R_factor_all 0.072 _cod_database_code 1001601