# generated using pymatgen data_NbCuSe2 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.57668469 _cell_length_b 3.57668469 _cell_length_c 13.92232600 _cell_angle_alpha 90.00000000 _cell_angle_beta 90.00000000 _cell_angle_gamma 120.00001273 _symmetry_Int_Tables_number 1 _chemical_formula_structural NbCuSe2 _chemical_formula_sum 'Nb2 Cu2 Se4' _cell_volume 154.24236860 _cell_formula_units_Z 2 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 '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 Nb Nb0 1 0.33333300 0.66666700 0.24685300 1.0 Nb Nb1 1 0.66666700 0.33333300 0.74685300 1.0 Cu Cu2 1 0.33333300 0.66666700 0.46121400 1.0 Cu Cu3 1 0.66666700 0.33333300 0.96121400 1.0 Se Se4 1 0.33333300 0.66666700 0.86808500 1.0 Se Se5 1 0.66666700 0.33333300 0.12984800 1.0 Se Se6 1 0.66666700 0.33333300 0.36808500 1.0 Se Se7 1 0.33333300 0.66666700 0.62984800 1.0