data_1008130 _chemical_name_systematic 'Potassium teraoxoruthenate(VII)' _chemical_formula_structural 'K Ru O4' _chemical_formula_sum 'K O4 Ru' _publ_section_title ; Crystal Structure of Potassium Perruthenate, K Ru O~4~ ; loop_ _publ_author_name 'Silverman, M D' 'Levy, H A' _journal_name_full 'Journal of the American Chemical Society' _journal_coden_ASTM JACSAT _journal_volume 76 _journal_year 1954 _journal_page_first 3317 _journal_page_last 3319 _cell_length_a 5.609(2) _cell_length_b 5.609(2) _cell_length_c 12.991(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 408.7 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'I 41/a S' _symmetry_Int_Tables_number 88 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' 'x,1/2+y,1/4-z' '-x,1/2-y,1/4-z' '-y,x,-z' 'y,-x,-z' '-y,1/2+x,1/4+z' 'y,1/2-x,1/4+z' '1/2+x,1/2+y,1/2+z' '1/2-x,1/2-y,1/2+z' '1/2+x,y,3/4-z' '1/2-x,-y,3/4-z' '1/2-y,1/2+x,1/2-z' '1/2+y,1/2-x,1/2-z' '1/2-y,x,3/4+z' '1/2+y,-x,3/4+z' loop_ _atom_type_symbol _atom_type_oxidation_number Ru7+ 7.000 K1+ 1.000 O2- -2.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Ru1 Ru7+ 4 a 0. 0. 0. 1. 0 d K1 K1+ 4 b 0. 0. 0.5 1. 0 d O1 O2- 16 f 0.244(2) 0.117(2) 0.073(2) 1. 0 d _refine_ls_R_factor_all 0.096