data_global _amcsd_formula_title 'AsI3' loop_ _publ_author_name 'Trotter J' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 121 _journal_year 1965 _journal_page_first 81 _journal_page_last 86 _publ_section_title ; The crystal structure of arsenic triiodide, AsI3 ; _database_code_amcsd 0010610 _chemical_formula_sum 'As I3' _cell_length_a 7.208 _cell_length_b 7.208 _cell_length_c 21.436 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 964.504 _exptl_crystal_density_diffrn 4.707 _symmetry_space_group_name_H-M 'R -3' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'y,-x+y,-z' '2/3+y,1/3-x+y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' 'x-y,x,-z' '2/3+x-y,1/3+x,1/3-z' '1/3+x-y,2/3+x,2/3-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv As 0.00000 0.00000 0.19850 0.05699 I 0.34850 0.33330 0.08220 0.06079