data_[Na8P8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [5.6696]
_cell_length_b [6.0574]
_cell_length_c [10.1550]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [NaP]
_chemical_formula_sum '[Na8 P8]'
_cell_volume [348.7552]
_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  4  0.1155  0.6141  0.4180  1.0
  Na  Na1  4  0.1548  0.8358  0.7845  1.0
  P  P2  4  0.1128  0.0577  0.5345  1.0
  P  P3  4  0.1526  0.6791  0.1157  1.0
]