#------------------------------------------------------------------------------ #$Date: 2014-07-11 17:35:18 +0300 (Fri, 11 Jul 2014) $ #$Revision: 120071 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/15/1001582.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_1001582 _chemical_name_systematic ; Yttrium strontium copper carbonate oxide (4/8/11/1/25) ; _chemical_formula_structural 'Y4 Sr8 Cu11 (C O3) O25' _chemical_formula_sum 'Cu11 O28 Sr8 Y4' _publ_section_title ; Ordered substitution of "CO~3~" groups for CuO~4~ square groups in the "123" structure. The oxycarbonate Y~4~Sr~8~Cu~11~CO~3~O~25~, n=4 member of the series Y~n~Sr~2n~Cu~3n-1~CO~3~O~7n-3~ ; loop_ _publ_author_name 'Domenges, B' 'Hervieu, M' 'Raveau, B' _journal_name_full 'Physica C (Amsterdam) (152,1988-)' _journal_coden_ASTM PHYCE6 _journal_volume 207 _journal_year 1993 _journal_page_first 65 _journal_page_last 78 _cell_length_a 15.311 _cell_length_b 3.851 _cell_length_c 22.371 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1319.1 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'B m 2 m' _symmetry_Int_Tables_number 35 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,y,-z' '-x,y,z' 'x,y,-z' '1/2+x,y,1/2+z' '1/2-x,y,1/2-z' '1/2-x,y,1/2+z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Y3+ 3.000 Sr2+ 2.000 Cu2+ 2.180 C4+ 4.000 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+ 8 f 0.125 0.5 0.74 1. 0 d Sr1 Sr2+ 8 f 0.125 0.5 -0.0935 1. 0 d Sr2 Sr2+ 8 f 0.3572 0.5 -0.0935 1. 0 d Cu1 Cu2+ 4 e 0. 0. 0.819 1. 0 d Cu2 Cu2+ 8 f 0.25 0. 0.819 1. 0 d Cu3 Cu2+ 4 e 0.5 0. 0.8265 1. 0 d Cu4 Cu2+ 2 a 0. 0. 0. 1. 0 d Cu5 Cu2+ 4 d 0.25 0. 0. 1. 0 d C1 C4+ 2 b 0.5 0. 0. 1. 0 d O1 O2- 8 f 0.125 0. 0.8075 1. 0 d O2 O2- 8 f 0.375 0. 0.827 1. 0 d O3 O2- 4 e 0. 0.5 0.8115 1. 0 d O4 O2- 8 f 0.25 0.5 0.8115 1. 0 d O5 O2- 4 e 0.5 0.5 0.828 1. 0 d O6 O2- 4 e 0. 0. -0.0825 1. 0 d O7 O2- 8 f 0.25 0. -0.0825 1. 0 d O8 O2- 4 d 0.5858 0. 0. 0.5 0 d O9 O2- 8 f 0.5435 0. -0.05 0.5 0 d O10 O2- 2 a 0. 0.5 0. 1. 0 d O11 O2- 4 d 0.25 0.5 0. 1. 0 d _cod_database_code 1001582 _journal_paper_doi 10.1016/0921-4534(93)90424-O