data_NaNbP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.29
_cell_length_b   3.29
_cell_length_c   6.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbP2
_chemical_formula_sum   'Na1 Nb1 P2'
_cell_volume   71.47
_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
  Nb  Nb1  1  0.0  0.0  0.31  1.0
  P  P2  1  0.64  0.64  0.56  1.0
  P  P3  1  0.64  0.64  0.06  1.0

data_NaNbP2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.65
_cell_length_b   4.65
_cell_length_c   6.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaNbP2
_chemical_formula_sum   'Na2 Nb2 P4'
_cell_volume   142.95
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.0  1.0
  Nb  Nb1  2  0.0  0.0  0.31  1.0
  P  P2  2  0.14  0.5  0.06  1.0
  P  P3  2  0.14  0.5  0.56  1.0

Na Nb P P
Na Nb P P 0 3 - - o 0 1 o o o 1 3 - - o 1 2 - - o 1 2 o - o 1 2 - o o 2 2 + o o 2 2 o + o 2 3 o o o 2 3 o o + 