data_9007744 _chemical_name 'YBa2Cu2.94O6.82' loop_ _publ_author_name 'Brodt K' 'Fuess H' 'Paulus E F' 'Assmus W' 'Kowalewski J' _journal_name_full "Acta Crystallographica, Section C" _journal_volume 46 _journal_year 1990 _journal_page_first 354 _journal_page_last 358 _publ_section_title ; Untwinned single crystals of the high-temperature superconductor YBa2Cu3O7-x ; _chemical_formula_sum 'Y Ba2 Cu2.941 O6.822' _cell_length_a 3.836 _cell_length_b 3.883 _cell_length_c 11.686 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 174.065 _symmetry_space_group_name_H-M 'P m m m' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,z' '-x,y,-z' '-x,y,z' 'x,-y,-z' 'x,y,-z' '-x,-y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_Uiso_or_equiv Y1 0.50000 0.50000 0.50000 1.00000 0.00530 Ba1 0.50000 0.50000 0.18434 1.00000 0.00820 Cu1 0.00000 0.00000 0.00000 0.94100 0.00730 Cu2 0.00000 0.00000 0.35588 1.00000 0.00600 O1 0.00000 0.00000 0.15800 0.92100 0.01060 O2 0.50000 0.00000 0.37860 1.00000 0.00730 O3 0.00000 0.50000 0.37860 1.00000 0.00700 O4 0.00000 0.50000 0.00000 0.83000 0.01900 O5 0.50000 0.00000 0.00000 0.15000 0.01800