data_global _amcsd_formula_title 'I3 U' loop_ _publ_author_name 'Levy J' 'Taylor J' 'Wilson P' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 31 _journal_year 1975 _journal_page_first 880 _journal_page_last 882 _publ_section_title ; The structure of uranium(III) triiodide by neutron diffraction _cod_database_code 1008021 ; _database_code_amcsd 0015969 _chemical_formula_sum 'U I3' _cell_length_a 14.011 _cell_length_b 4.328 _cell_length_c 10.005 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 606.699 _exptl_crystal_density_diffrn 6.774 _symmetry_space_group_name_H-M 'C c m m' 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' '-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 0.25620 0.00000 0.25000 I1 -0.07890 0.00000 0.25000 I2 0.35570 0.00000 -0.06610