data_global _chemical_name_mineral 'Oxygen' loop_ _publ_author_name 'Datchi F' 'Weck G' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 229 _journal_year 2014 _journal_page_first 135 _journal_page_last 157 _publ_section_title ; X-ray crystallography of simple molecular solids up to megabar pressures: application to solid oxygen and carbon dioxide ; _database_code_amcsd 0020612 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'O' _cell_length_a 7.97 _cell_length_b 5.633 _cell_length_c 3.711 _cell_angle_alpha 90 _cell_angle_beta 116.3 _cell_angle_gamma 90 _cell_volume 149.359 _exptl_crystal_density_diffrn 2.846 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv O1 0.82600 0.00000 0.17400 0.01500 O2 0.24800 0.00000 0.18600 0.01400 O3 0.03600 0.26690 0.18100 0.01800