#------------------------------------------------------------------------------ #$Date: 2016-02-13 14:50:18 +0200 (Sat, 13 Feb 2016) $ #$Revision: 176428 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/54/11/1541124.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_1541124 loop_ _publ_author_name 'Petricek, V.' 'Gao, Y.' 'Lee, P.' 'Coppens, P.' _publ_section_title ; X-ray analysis of the incommensurate modulation in the 2:2:1:2 Bi-Sr-Ca-Cu-O superconductor including the oxygen atoms ; _journal_name_full 'Physical Review, Serie 3. B - Condensed Matter (18,1978-)' _journal_page_first 387 _journal_page_last 392 _journal_volume 42 _journal_year 1990 _chemical_formula_sum 'Bi2.15 Ca0.75 Cu2 O8 Sr1.92' _chemical_name_systematic 'Bi2.15 Sr1.92 Ca0.75 Cu2 O8' _space_group_IT_number 66 _symmetry_space_group_name_Hall '-A 2a 2' _symmetry_space_group_name_H-M 'A m a a' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 5.408 _cell_length_b 5.413 _cell_length_c 30.871 _cell_volume 903.702 _citation_journal_id_ASTM PRBMDO _cod_data_source_file Petricek_PRBMDO_1990_1439.cif _cod_data_source_block Bi2.15Ca0.75Cu2O8Sr1.92 _cod_original_cell_volume 903.7024 _cod_original_sg_symbol_Hall '-C 2 2c (z,x,y)' _cod_database_code 1541124 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,-y,-z -x+1/2,y,-z -x+1/2,-y,z -x,-y,-z -x,y,z x-1/2,-y,z x-1/2,y,-z x,y+1/2,z+1/2 x,-y+1/2,-z+1/2 -x+1/2,y+1/2,-z+1/2 -x+1/2,-y+1/2,z+1/2 -x,-y+1/2,-z+1/2 -x,y+1/2,z+1/2 x-1/2,-y+1/2,z+1/2 x-1/2,y+1/2,-z+1/2 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv O1 O-2 0.75 0 0.197 1 0.0 Bi1 Bi+3 0.505 0.2327 0.0523 0.495 0.0 Ca1 Ca+2 0 0.25 0.25 0.75 0.0 Sr2 Sr+2 0 0.25 0.25 0.19 0.0 Cu1 Cu+2 0.5 0.2499 0.1965 1 0.0 Sr1 Sr+2 0 0.2525 0.1408 0.86 0.0 Bi2 Bi+3 0 0.2525 0.1408 0.05 0.0 O2 O-2 0.25 0.5 0.199 1 0.0 Bi3 Bi+3 0 0.25 0.25 0.06 0.0 O4 O-2 0.02 0.157 0.056 0.5 0.0 O3 O-2 0.53 0.289 0.116 0.5 0.0