data_1011050 _chemical_name_systematic 'Silver iodine' _chemical_name_mineral 'Iodargyrite' _chemical_compound_source 'synthetic' _chemical_formula_structural 'Ag I' _chemical_formula_sum 'Ag I' _publ_section_title 'Ueber die Kristallstruktur von Ag I.' _publ_author_name 'Aminoff, G' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 57 _journal_year 1922 _journal_page_first 180 _journal_page_last 185 _cell_length_a 4.58 _cell_length_b 4.58 _cell_length_c 7.51 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 136.4 _cell_formula_units_Z 2 _exptl_crystal_density_meas 5.67 _symmetry_space_group_name_H-M 'P 63 m c' _symmetry_Int_Tables_number 186 _symmetry_cell_setting hexagonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-y,x-y,z' 'y-x,-x,z' '-y,-x,z' 'y-x,y,z' 'x,x-y,z' '-x,-y,1/2+z' 'y,y-x,1/2+z' 'x-y,x,1/2+z' 'y,x,1/2+z' 'x-y,-y,1/2+z' '-x,y-x,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Ag1+ 1.000 I1- -1.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Ag1 Ag1+ 2 b 0.3333 0.6667 0. 1. 0 d I1 I1- 2 b 0.3333 0.6667 0.375 1. 0 d