data_image0 _chemical_formula_structural Cu2S2 _chemical_formula_sum "Cu2 S2" _cell_length_a 3.8575603275631916 _cell_length_b 3.857560327563191 _cell_length_c 18.181413714170446 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 120.00000000000001 _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 Cu Cu1 1.0 0.6666666661702458 0.33333333430110706 0.4249784286013945 1.0000 Cu Cu2 1.0 0.6666666661702458 0.33333333430110706 0.5750135475907355 1.0000 S S1 1.0 0.33333333280443506 0.6666666656088701 0.4331985704643739 1.0000 S S2 1.0 0.33333333280443506 0.6666666656088701 0.5667891425829193 1.0000