data_global _amcsd_formula_title 'As2O3*SO3' loop_ _publ_author_name 'Mercier R' _journal_name_full 'Revue de Chimie Minerale' _journal_volume 12 _journal_year 1975 _journal_page_first 508 _journal_page_last 517 _publ_section_title ; Etude structurale du compose As2O3, 1 SO3 ; _database_code_amcsd 0015375 _chemical_formula_sum 'As2 S O6' _cell_length_a 4.655 _cell_length_b 11.54 _cell_length_c 4.795 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 257.581 _exptl_crystal_density_diffrn 3.583 _symmetry_space_group_name_H-M 'P 21 21 2' 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 _atom_site_U_iso_or_equiv As 0.26600 0.19140 0.17800 0.00760 S 0.50000 0.50000 0.21170 0.01254 O1 0.71700 0.45260 0.02100 0.01684 O2 0.90520 0.23950 0.11400 0.00861 O3 0.38300 0.40700 0.38250 0.02558