#------------------------------------------------------------------------------ #$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/14/1001412.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_1001412 loop_ _publ_author_name 'Rouillon, T' 'Provost, J' 'Hervieu, M' 'Groult, D' 'Michel, C' 'Raveau, B' _publ_section_title ; Superconductivity up to 100 K in lead cuprates: A new superconductor Pb~.5~ Sr~2.5~ Y~.5~ Ca~.5~ Cu~2~ O~7-$~-delta ; _journal_coden_ASTM PHYCE6 _journal_name_full 'Physica C (Amsterdam) (152,1988-)' _journal_page_first 201 _journal_page_last 209 _journal_paper_doi 10.1016/0921-4534(89)90370-5 _journal_volume 159 _journal_year 1989 _chemical_formula_structural 'Pb.46 Sr2.46 Y.5 Ca.5 Cu2 O6.3' _chemical_formula_sum 'Ca0.5 Cu2 O6.3 Pb0.46 Sr2.46 Y0.5' _chemical_name_systematic ; Lead strontium yttrium calcium copper oxide (.5/2.5/.5/.5/ 2/6.3) ; _space_group_IT_number 123 _symmetry_cell_setting tetragonal _symmetry_Int_Tables_number 123 _symmetry_space_group_name_Hall '-P 4 2' _symmetry_space_group_name_H-M 'P 4/m m m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 1 _cell_length_a 3.817 _cell_length_b 3.817 _cell_length_c 11.907 _cell_volume 173.5 _refine_ls_R_factor_all 0.07 _cod_original_formula_sum 'Ca.5 Cu2 O6.3 Pb.46 Sr2.46 Y.5' _cod_database_code 1001412 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_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 Pb1 Pb2+ 1 d 0.5 0.5 0.5 0.46(2) 0 d Sr1 Sr2+ 1 d 0.5 0.5 0.5 0.46(2) 0 d Sr2 Sr2+ 2 g 0. 0. 0.2890(8) 1.00(3) 0 d Y1 Y3+ 1 a 0. 0. 0. 0.5(2) 0 d Ca1 Ca2+ 1 a 0. 0. 0. 0.5(2) 0 d Cu1 Cu2+ 2 f 0.5 0.5 0.1362(9) 1.00(3) 0 d O1 O2- 4 i 0. 0.5 0.127(4) 1. 0 d O2 O2- 2 h 0.5 0.5 0.318(8) 0.65(6) 0 d O3 O2- 1 b 0. 0. 0.5 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Pb2+ 2.000 Sr2+ 2.000 Y3+ 3.000 Ca2+ 2.000 Cu2+ 2.130 O2- -2.000