#------------------------------------------------------------------------------ #$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $ #$Revision: 176435 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/17/1001760.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_1001760 loop_ _publ_author_name 'Pelloquin, D' 'Michel, C' 'Hervieu, M' 'Studer, F' 'Raveau, B' _publ_section_title ; On the crystal structure of the "1201" superconductors Hg0.5 Bi0.5 Sr2- x Lax Cu O5-d ; _journal_coden_ASTM PHYCE6 _journal_name_full 'Physica C (Amsterdam) (152,1988-)' _journal_page_first 195 _journal_page_last 209 _journal_paper_doi 10.1016/0921-4534(95)00722-9 _journal_volume 257 _journal_year 1996 _chemical_formula_structural '(Hg0.5 Bi0.5) (Sr1.5 La0.5) Cu O5' _chemical_formula_sum 'Bi0.5 Cu Hg0.5 La0.5 O5 Sr1.5' _chemical_name_systematic ; Mercury bismuth strontium lanthanum copper oxide (0.5/0.5/1.5/0.5/1/5) ; _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 3.7769(1) _cell_length_b 3.7769(1) _cell_length_c 8.8252(3) _cell_volume 125.9 _refine_ls_R_factor_all 0.046 _cod_original_formula_sum 'Bi.5 Cu Hg.5 La.5 O5 Sr1.5' _cod_database_code 1001760 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 Hg1 Hg2+ 1 a 0. 0. 0. 0.5 0 d Bi1 Bi5+ 1 a 0. 0. 0. 0.5 0 d Sr1 Sr2+ 2 h 0.5 0.5 0.2929(3) 0.75 0 d La1 La3+ 2 h 0.5 0.5 0.2929(3) 0.25 0 d Cu1 Cu2+ 1 b 0. 0. 0.5 1. 0 d O1 O2- 2 e 0.5 0. 0.5(4) 1. 0 d O2 O2- 2 g 0. 0. 0.2280(4) 1. 0 d O3 O2- 4 n 0.301(14) 0.5(4) 0. 0.10(1) 0 d O4 O2- 4 j 0.385(4) 0.385(4) 0. 0.15(1) 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Hg2+ 2.000 Bi5+ 4.600 Sr2+ 2.000 La3+ 3.000 Cu2+ 2.200 O2- -2.000