data_[Na20Si4P12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.9071]
_cell_length_b [7.2821]
_cell_length_c [15.1940]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.7797]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na5SiP3]
_chemical_formula_sum '[Na20 Si4 P12]'
_cell_volume [751.6381]
_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  4  0.0555  0.0071  0.7424  1
  Na  Na1  4  0.2454  0.5284  0.0822  1
  Na  Na2  4  0.3374  0.6552  0.7592  1
  Na  Na3  4  0.3411  0.1636  0.4191  1
  Na  Na4  4  0.4155  0.0153  0.0887  1
  Si  Si5  4  0.0114  0.1388  0.0834  1
  P  P6  4  0.0197  0.1812  0.9345  1
  P  P7  4  0.2597  0.7420  0.9208  1
  P  P8  4  0.2989  0.2300  0.2217  1
]