#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/13/1001377.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_1001377 loop_ _publ_author_name 'Roth, G' 'Heger, G' 'Renker, B' 'Pannetier, J' 'Caignaert, V' 'Hervieu, M' 'Raveau, B' _publ_section_title ; Crystallographic study of the tetragonal high-T~c~ superconductor Y Ba~2~ (Cu~.95~ Fe~.05~)~3~ O~7~ ; _journal_coden_ASTM PHYCE6 _journal_name_full 'Physica C (Amsterdam) (152,1988-)' _journal_page_first 972 _journal_page_last 973 _journal_volume 153 _journal_year 1988 _chemical_formula_analytical 'Y Ba2 (Fe.05 Cu.95)3 O7' _chemical_formula_structural 'Y Ba2 Cu2.98 O6.92' _chemical_formula_sum 'Ba2 Cu2.98 O6.92 Y' _chemical_name_systematic 'Yttrium barium copper oxide (1/2/3/6.9)' _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 3.863(1) _cell_length_b 3.863(1) _cell_length_c 11.626(3) _cell_volume 173.5 _refine_ls_R_factor_all 0.036 _cod_database_code 1001377 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 Y1 Y3+ 1 d 0.5 0.5 0.5 1. 0 d Ba1 Ba2+ 2 h 0.5 0.5 0.1861(3) 1. 0 d Cu1 Cu3+ 1 a 0. 0. 0. 0.98(1) 0 d Cu2 Cu2+ 2 g 0. 0. 0.3574(2) 1. 0 d O1 O2- 2 f 0. 0.5 0. 0.50(3) 0 d O2 O2- 4 i 0.5 0. 0.3782(2) 1. 0 d O3 O2- 2 g 0. 0. 0.1573(3) 0.96(2) 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Y3+ 3.000 Ba2+ 2.000 Cu3+ 2.860 Cu2+ 2.000 O2- -2.000