data_global _amcsd_formula_title 'I4 U' loop_ _publ_author_name 'Levy J' 'Taylor J' 'Waugh A' _journal_name_full 'Inorganic Chemistry' _journal_volume 19 _journal_year 1980 _journal_page_first 672 _journal_page_last 674 _publ_section_title ; Crystal Structure of Uranium(IV) Tetraiodide by X-ray and Neutron Diffraction _cod_database_code 1008071 ; _database_code_amcsd 0016013 _chemical_formula_sum 'U I4' _cell_length_a 13.967 _cell_length_b 8.472 _cell_length_c 7.510 _cell_angle_alpha 90 _cell_angle_beta 90.54 _cell_angle_gamma 90 _cell_volume 888.607 _exptl_crystal_density_diffrn 5.574 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-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 U1 0.00000 0.15200 0.25000 I1 0.12300 0.11800 -0.08600 I2 -0.13400 0.38200 0.10000