data_global _amcsd_formula_title 'Au Br4 H4 K O2' loop_ _publ_author_name 'Cox E' 'Webster K' _journal_name_full 'Journal of the Chemical Society' _journal_volume 1936 _journal_year 1936 _journal_page_first 1635 _journal_page_last 1637 _publ_section_title ; The Stereochemistry of Quadricovalent Atoms: Tervalent Gold _cod_database_code 1010207 ; _database_code_amcsd 0017143 _chemical_formula_sum 'Au K Br4 O2' _cell_length_a 9.51 _cell_length_b 11.93 _cell_length_c 4.23 _cell_angle_alpha 90 _cell_angle_beta 90. _cell_angle_gamma 90 _cell_volume 479.912 _exptl_crystal_density_diffrn 4.067 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,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 Au1 0.00000 0.00000 0.00000 K1 0.50000 0.00000 0.50000 Br1 0.18900 -0.10400 0.35500 Br2 0.14200 0.16800 -0.13000 O1 -0.09000 0.28000 0.20000