data_global _amcsd_formula_title 'K2S2O6' loop_ _publ_author_name 'Huggins M L' 'Frank G O' _journal_name_full 'American Mineralogist' _journal_volume 16 _journal_year 1931 _journal_page_first 580 _journal_page_last 591 _publ_section_title ; The crystal structure of potassium dithionate, K2S2O6 Note: coordinates revised according to Am Min 18 (1933) 455-457 ; _database_code_amcsd 9 _chemical_formula_sum 'S K O3' _cell_length_a 9.82 _cell_length_b 9.82 _cell_length_c 6.36 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 120.0 _cell_volume 531.142 _exptl_crystal_density_diffrn 2.235 _symmetry_space_group_name_H-M 'P 3 2 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'y,x,-z' '-y,x-y,z' '-x,-x+y,-z' '-x+y,-x,z' 'x-y,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z S1 0.0 0.0 0.16 S2 0.333333 0.666667 0.59 S3 0.333333 0.666667 0.27 K1 0.375 0.375 0.0 K2 0.69 0.69 0.5 O1 0.165 0.11 0.23 O2 0.615 0.17 0.34 O3 0.505 0.21 0.8