data_[Na32V16O40]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  V  1.6300  1.3500  0.7775
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Fddd]
_cell_length_a [6.0195]
_cell_length_b [9.3904]
_cell_length_c [20.2918]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [70]
_chemical_formula_structural [Na4V2O5]
_chemical_formula_sum '[Na32 V16 O40]'
_cell_volume [1146.9983]
_cell_formula_units_Z [8]
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  32  0.0005  0.2494  0.8443  1
  V  V1  16  0.0000  0.2059  0.5000  1
  O  O2  16  0.0000  0.0000  0.1820  1
  O  O3  16  0.0000  0.0000  0.3143  1
  O  O4  8  0.0000  0.0000  0.5000  1
]