data_image0 _chemical_formula_structural Pb2I4 _chemical_formula_sum "Pb2 I4" _cell_length_a 8.304676097421634 _cell_length_b 4.545221306384342 _cell_length_c 18.78455248 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _space_group_name_H-M_alt "P 1" _space_group_IT_number 1 loop_ _space_group_symop_operation_xyz 'x, y, z' loop_ _atom_site_type_symbol _atom_site_label _atom_site_symmetry_multiplicity _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Pb Pb1 1.0 0.0 0.9261136099999999 0.5350343764150699 1.0000 Pb Pb2 1.0 0.49999999999999933 0.4261136100000008 0.46496562358493004 1.0000 I I1 1.0 0.7525246227339724 0.4261281999999988 0.5996879952256351 1.0000 I I2 1.0 0.7474753772660312 0.9261282000000005 0.400312004774365 1.0000 I I3 1.0 0.2525246227339717 0.9261282000000005 0.400312004774365 1.0000 I I4 1.0 0.2474753772660293 0.4261281999999988 0.5996879952256351 1.0000