data_image0 _chemical_formula_structural CuSe2 _chemical_formula_sum "Cu1 Se2" _cell_length_a 3.3898579515657823 _cell_length_b 3.3898579515657823 _cell_length_c 18.063044883155506 _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 9.397778011286725e-20 2.6449257175429413e-39 0.499999999912653 1.0000 Se Se1 1.0 0.6666666678382255 0.333333333188377 0.5838348057161947 1.0000 Se Se2 1.0 0.33333333318837705 0.666666666376754 0.4161651941091113 1.0000