# generated using pymatgen data_Na2O2 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.00654700 _cell_length_b 5.52596800 _cell_length_c 6.37008400 _cell_angle_alpha 90.00000000 _cell_angle_beta 90.00000000 _cell_angle_gamma 90.00000000 _symmetry_Int_Tables_number 1 _chemical_formula_structural Na2O2 _chemical_formula_sum 'Na4 O4' _cell_volume 105.83310119 _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 Na Na0 1 0.81947400 0.75000000 0.50000000 1.0 Na Na1 1 0.18052600 0.25000000 0.00000000 1.0 Na Na2 1 0.18052600 0.25000000 0.50000000 1.0 Na Na3 1 0.81947400 0.75000000 0.00000000 1.0 O O4 1 0.32880700 0.93348700 0.75000000 1.0 O O5 1 0.67119300 0.06651300 0.25000000 1.0 O O6 1 0.32880700 0.56651300 0.25000000 1.0 O O7 1 0.67119300 0.43348700 0.75000000 1.0