data_global _amcsd_formula_title 'Ba4 Cu2 Hg O10 Tl2' loop_ _publ_author_name 'Martin C' 'Huve M' 'Van Tendeloo G' 'Maignan A' 'Michel C' 'Hervieu M' 'Raveau B' _journal_name_full 'Physica C' _journal_volume 212 _journal_year 1993 _journal_page_first 274 _journal_page_last 278 _publ_section_title ; A mercury-based superconducting cuprate, intergrowth of the 2201 and 1201 structures Tl2HgBa4Cu2O10+y _cod_database_code 1001575 ; _database_code_amcsd 0015055 _chemical_formula_sum 'Hg Tl2 Cu2 Ba4 O10' _cell_length_a 3.8584 _cell_length_b 3.8584 _cell_length_c 42.2031 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 628.288 _exptl_crystal_density_diffrn 7.642 _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 Hg1 0.00000 0.00000 0.00000 Tl1 0.00000 0.00000 0.22400 Cu1 0.00000 0.00000 0.11340 Ba1 0.50000 0.50000 0.06730 Ba2 0.50000 0.50000 0.15980 O1 0.00000 0.00000 0.05000 O2 0.50000 0.00000 0.11400 O3 0.00000 0.00000 0.18000 O4 0.50000 0.50000 0.22900