#------------------------------------------------------------------------------ #$Date: 2016-02-14 14:26:36 +0000 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: svn://www.crystallography.net/cod/cif/1/00/15/1001518.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_1001518 loop_ _publ_author_name 'Ledesert, M' 'Labbe, Ph' 'Groult, D' 'Daniel, Ph' 'Hervieu, M' 'Raveau, B' _publ_section_title ; The crystal structure of the cadmium derivative 1212 lead cuprate (Pb, Cd)Sr~2~YCu~2~O~7~ ; _journal_coden_ASTM EJSCE5 _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_page_first 357 _journal_page_last 367 _journal_volume 30 _journal_year 1993 _chemical_formula_structural ; (Pb0.56 Cd0.26) (Cd0.07 Cu0.11) Sr2 (Y0.91 Sr0.09) Cu2 O7 ; _chemical_formula_sum 'Cd0.33 Cu2.11 O7 Pb0.56 Sr2.09 Y0.91' _chemical_name_systematic ; Lead cadmium strontium yttrium copper oxide (0.6/0.3/2.1/0.9/2.1/7) ; _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 3.8108(9) _cell_length_b 3.8108(9) _cell_length_c 11.927(2) _cell_volume 173.2 _refine_ls_R_factor_all 0.033 _cod_original_formula_sum 'Cd.33 Cu2.11 O7 Pb.56 Sr2.09 Y.91' _cod_database_code 1001518 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_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Pb1 0.0405(6) 0. 0. 0.0405(6) 0. 0.0073(4) Cd1 0.0405(6) 0. 0. 0.0405(6) 0. 0.0073(4) Y1 0.0061(4) 0. 0. 0.0061(4) 0. 0.0115(7) Sr1 0.0061(4) 0. 0. 0.0061(4) 0. 0.0115(7) Sr2 0.0125(3) 0. 0. 0.0125(3) 0. 0.0139(5) Cu1 0.0046(3) 0. 0. 0.0046(3) 0. 0.0128(6) O1 0.012(3) 0. 0. 0.003(2) 0. 0.024(3) O2 0.017(3) 0. 0. 0.017(3) 0. 0.025(6) O3 0.08(4) 0. 0. 0.03(2) 0. 0.03(1) 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 Pb4+ 1 a 0. 0. 0. 0.56 0 d Cd1 Cd2+ 1 a 0. 0. 0. 0.26 0 d Y1 Y3+ 1 d 0.5 0.5 0.5 0.91 0 d Sr1 Sr2+ 1 d 0.5 0.5 0.5 0.09 0 d Sr2 Sr2+ 2 h 0.5 0.5 0.2091(1) 1. 0 d Cu1 Cu2+ 2 g 0. 0. 0.3614(2) 1. 0 d O1 O2- 4 i 0. 0.5 0.3782(6) 1. 0 d O2 O2- 2 g 0. 0. 0.168(1) 1. 0 d O3 O2- 4 n 0.36(1) 0.5 0. 0.25 0 d Cd2 Cd2+ 4 l 0. 0.190(6) 0. 0.0175 0 d Cu2 Cu2+ 4 l 0. 0.190(6) 0. 0.0275 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Pb4+ 4.000 Cd2+ 2.000 Y3+ 3.000 Sr2+ 2.000 Cu2+ 1.986 O2- -2.000