data_global _amcsd_formula_title 'I4 Sn' loop_ _publ_author_name 'Dickinson R' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 64 _journal_year 1926 _journal_page_first 400 _journal_page_last 404 _publ_section_title ; Die Symmetrie und der Elementarbereich von Zinntetrajodid. _cod_database_code 1010501 ; _database_code_amcsd 0017417 _chemical_formula_sum 'Sn I4' _cell_length_a 12.23 _cell_length_b 12.23 _cell_length_c 12.23 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1829.276 _exptl_crystal_density_diffrn 4.548 _symmetry_space_group_name_H-M 'P a 3' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+z,x,1/2-y' 'z,1/2-x,1/2+y' '1/2-z,1/2+x,y' '-z,-x,-y' '1/2+y,1/2-z,-x' '1/2-y,-z,1/2+x' '-y,1/2+z,1/2-x' 'y,z,x' 'x,1/2-y,1/2+z' '1/2-x,1/2+y,z' '1/2+x,y,1/2-z' '-x,-y,-z' '1/2-z,-x,1/2+y' '-z,1/2+x,1/2-y' '1/2+z,1/2-x,-y' 'z,x,y' '1/2-y,1/2+z,x' '1/2+y,z,1/2-x' 'y,1/2-z,1/2+x' '-y,-z,-x' '-x,1/2+y,1/2-z' '1/2+x,1/2-y,-z' '1/2-x,-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Sn1 0.12900 0.12900 0.12900 I1 0.25300 0.25300 0.25300 I2 0.00900 0.00100 0.25300