#------------------------------------------------------------------------------ #$Date: 2014-07-11 17:35:18 +0300 (Fri, 11 Jul 2014) $ #$Revision: 120071 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/15/1001589.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_1001589 _chemical_name_systematic ; Yttrium calcium barium copper cobalt oxide (0.9/0.1/2/2.6/0.4/7.1) ; _chemical_formula_structural ; (Y0.85 Ca0.15) Ba2 Cu2 (Cu0.64 Co0.36) O7.05 ; _chemical_formula_sum 'Ba2 Ca0.15 Co0.36 Cu2.64 O7.05 Y0.85' _[local]_cod_chemical_formula_sum_orig 'Ba2 Ca.15 Co.36 Cu2.64 O7.05 Y.85' _publ_section_title ; Influence of thermal treatment on Y~1-x~Ca~x~Ba~2~Cu~3-x~Co~x~O~7~. A neutron diffraction study ; loop_ _publ_author_name 'Suard, E' 'Caignaert, V' 'Maignan, A' 'Bouree, F' 'Raveau, B' _journal_name_full 'Physica C (Amsterdam) (152,1988-)' _journal_coden_ASTM PHYCE6 _journal_volume 210 _journal_year 1993 _journal_page_first 164 _journal_page_last 172 _cell_length_a 3.8690(1) _cell_length_b 3.8690(1) _cell_length_c 11.6982(4) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 175.1 _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 Y3+ 3.000 Ca2+ 2.000 Ba2+ 2.000 Cu2+ 2.470 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 Y1 Y3+ 1 d 0.5 0.5 0.5 0.85(4) 0 d Ca1 Ca2+ 1 d 0.5 0.5 0.5 0.15(4) 0 d Ba1 Ba2+ 2 h 0.5 0.5 0.1912(3) 1. 0 d Cu1 Cu2+ 1 a 0. 0. 0. 0.64 0 d Co1 Co2+ 1 a 0. 0. 0. 0.36 0 d Cu2 Cu2+ 2 g 0. 0. 0.3598(2) 1. 0 d O1 O2- 4 i 0. 0.5 0.3763(2) 1. 0 d O2 O2- 2 g 0. 0. 0.1527(4) 1. 0 d O3 O2- 4 n 0.066(4) 0.5 0. 0.2625 0 d _refine_ls_R_factor_all 0.034 _cod_database_code 1001589 _journal_paper_doi 10.1016/0921-4534(93)90021-H