#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/61/1006189.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_1006189 loop_ _publ_author_name 'Rial, C' 'Moran, E' 'Alario-Franco, M A' 'Amador, U' 'Martinez, J L' 'Rodriguez-Carvajal, J' 'Andersen, N H' _publ_section_title ; Effects of extra oxygen on the structure and superconductivity of La2-x Cax Cu O4+y prepared by chemical oxidation ; _journal_coden_ASTM PHYCE6 _journal_name_full 'Physica C (Amsterdam) (152,1988-)' _journal_page_first 277 _journal_page_last 293 _journal_paper_doi 10.1016/S0921-4534(98)00005-7 _journal_volume 297 _journal_year 1998 _chemical_formula_analytical '(La1.95 Ca0.05) Cu O4.084' _chemical_formula_structural '(La1.95 Ca0.05) Cu O4.1' _chemical_formula_sum 'Ca0.05 Cu La1.95 O4.1' _chemical_name_systematic ; Lanthanum calcium copper oxide (1.95/0.05/1/4.1) ; _space_group_IT_number 64 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 64 _symmetry_space_group_name_Hall '-B 2ab 2' _symmetry_space_group_name_H-M 'B m a b' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 5.3310(3) _cell_length_b 5.3826(3) _cell_length_c 13.1623(6) _cell_volume 377.7 _refine_ls_R_factor_all 0.042 _[local]_cod_chemical_formula_sum_orig 'Ca.05 Cu La1.95 O4.1' _cod_database_code 1006189 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,-y,-z x,1/2+y,1/2-z x,1/2-y,1/2+z -x,-y,-z -x,y,z -x,1/2-y,1/2+z -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,-z 1/2+x,1/2-y,z 1/2-x,-y,1/2-z 1/2-x,y,1/2+z 1/2-x,1/2-y,z 1/2-x,1/2+y,-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 La1 La3+ 8 f 0. 0.0007(9) 0.3608(1) 0.975 0 d Ca1 Ca2+ 8 f 0. 0.0007(9) 0.3608(1) 0.025 0 d Cu1 Cu2+ 4 a 0. 0. 0. 1. 0 d O1 O2- 8 e 0.25 0.25 0.0049(5) 1.01(1) 0 d O2 O2- 8 f 0. -0.025(1) 0.1821(5) 0.880(5) 0 d O3 O2- 16 g 0.055(5) 0.088(5) 0.182(4) 0.060(3) 0 d O4 O2- 8 e 0.25 0.25 0.234(6) 0.040(5) 0 d loop_ _atom_type_symbol _atom_type_oxidation_number La3+ 3.000 Ca2+ 2.000 Cu2+ 2.250 O2- -2.000