data_[Nb4V16Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  V  1.6300  1.3500  0.7775
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [7.1635]
_cell_length_b [7.1635]
_cell_length_c [7.1635]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [NbV4Sb]
_chemical_formula_sum '[Nb4 V16 Sb4]'
_cell_volume [367.5999]
_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
[
  Nb  Nb0  4  0.0000  0.0000  0.0000  1
  V  V1  16  0.1258  0.1258  0.6258  1
  Sb  Sb2  4  0.2500  0.2500  0.2500  1
]