data_Na3P5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.88
_cell_length_b   5.88
_cell_length_c   3.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.24
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na3P5
_chemical_formula_sum   'Na3 P5'
_cell_volume   137.22
_cell_formula_units_Z   1
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  1  0.0  0.0  0.0  1.0
  Na  Na1  1  0.04  0.0  0.99  1.0
  Na  Na2  1  0.19  0.0  0.99  1.0
  P  P3  1  0.11  0.0  0.0  1.0
  P  P4  1  0.06  0.1  0.0  1.0
  P  P5  1  0.06  0.9  0.0  1.0
  P  P6  1  0.11  0.95  0.99  1.0
  P  P7  1  0.11  0.05  0.99  1.0

data_Na3P5
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.97
_cell_length_b   5.88
_cell_length_c   5.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Na3P5
_chemical_formula_sum   'Na3 P5'
_cell_volume   137.25
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  1  0.0  0.0  0.0  1.0
  Na  Na1  1  0.99  0.0  0.04  1.0
  Na  Na2  1  0.99  0.0  0.19  1.0
  P  P3  2  0.0  0.1  0.06  1.0
  P  P4  2  0.99  0.05  0.11  1.0
  P  P5  1  0.0  0.0  0.11  1.0

Na Na Na P P P P P
Na Na Na P P P P P 0 1 o o - 2 6 o - o 2 3 o o + 2 7 o o o 3 7 o o - 3 6 o - - 4 7 o o - 5 6 o o - 