data_global _amcsd_formula_title 'Ba1.6 Cu2 La2.4 O9 Tl' loop_ _publ_author_name 'Martin C' 'Maignan A' 'Huve M' 'Hervieu M' 'Michel C' 'Raveau B' _journal_name_full 'Physica C' _journal_volume 179 _journal_year 1991 _journal_page_first 1 _journal_page_last 8 _publ_section_title ; TlBa2-xLa2+xCu2O9+d: a new 42K superconductor, intergrowth of "1201" and "0201" structures _cod_database_code 1001483 ; _database_code_amcsd 0015025 _chemical_formula_sum 'Tl Ba1.6 La2.4 Cu2 O9' _cell_length_a 3.8110 _cell_length_b 3.8110 _cell_length_c 31.556 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 458.311 _exptl_crystal_density_diffrn 7.453 _symmetry_space_group_name_H-M 'I 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,-x,z' '1/2-y,1/2-x,1/2+z' 'y,x,-z' '1/2+y,1/2+x,1/2-z' 'y,-x,-z' '1/2+y,1/2-x,1/2-z' '-y,x,z' '1/2-y,1/2+x,1/2+z' 'x,-y,z' '1/2+x,1/2-y,1/2+z' '-x,y,-z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' 'y,x,z' '1/2+y,1/2+x,1/2+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' 'y,-x,z' '1/2+y,1/2-x,1/2+z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,-y,-z' '1/2+x,1/2-y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Tl1 0.00000 0.00000 0.00000 1.00000 Ba1 0.50000 0.50000 0.08500 0.80000 La1 0.50000 0.50000 0.08500 0.20000 La2 0.50000 0.50000 0.20440 1.00000 Cu1 0.00000 0.00000 0.14660 1.00000 O1 0.50000 0.50000 0.00000 1.00000 O2 0.00000 0.00000 0.06300 1.00000 O3 0.50000 0.00000 0.14580 1.00000 O4 0.00000 0.00000 0.21800 1.00000