data_[Na4Sb4Se4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sb  2.0500  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.3930]
_cell_length_b [5.4102]
_cell_length_c [10.0808]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0453]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaSbSeO]
_chemical_formula_sum '[Na4 Sb4 Se4 O4]'
_cell_volume [381.1369]
_cell_formula_units_Z [4]
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  2  0.1534  0.2500  0.7825  1
  Na  Na1  2  0.4183  0.2500  0.4126  1
  Sb  Sb2  2  0.0814  0.2500  0.1119  1
  Sb  Sb3  2  0.3946  0.7500  0.0927  1
  Se  Se4  2  0.2629  0.7500  0.3247  1
  Se  Se5  2  0.4130  0.7500  0.8057  1
  O  O6  4  0.1610  0.5057  0.9836  1
]