data_global _amcsd_formula_title 'O4 Sr Tl2' loop_ _publ_author_name 'Michel C' 'Hervieu M' 'Raveau B' 'Li S' 'Greaney M' 'Fine S' 'Potenza J' 'Greenblatt M' _journal_name_full 'Materials Research Bulletin' _journal_volume 26 _journal_year 1991 _journal_page_first 123 _journal_page_last 128 _publ_section_title ; SrTl2O4, a semi-metal with the CaFe2O4 structure _cod_database_code 1001499 ; _database_code_amcsd 0014355 _chemical_formula_sum 'Tl2 Sr O4' _cell_length_a 10.0411 _cell_length_b 11.6975 _cell_length_c 3.4006 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 399.420 _exptl_crystal_density_diffrn 9.319 _symmetry_space_group_name_H-M 'P n a m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Tl1 0.42250 0.60800 0.25000 Tl2 0.42150 0.10960 0.25000 Sr1 0.75360 0.62540 0.25000 O1 0.21400 0.16900 0.25000 O2 0.12980 0.47210 0.25000 O3 0.53540 0.77920 0.25000 O4 0.41860 0.42230 0.25000