data_Na2SbP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.12
_cell_length_b   3.12
_cell_length_c   9.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2SbP
_chemical_formula_sum   'Na2 Sb1 P1'
_cell_volume   89.71
_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  0.56  0.56  0.26  1.0
  Na  Na1  1  0.56  0.56  0.97  1.0
  Sb  Sb3  1  0.0  0.0  0.62  1.0
  P  P2  1  0.0  0.0  0.0  1.0

data_Na2SbP
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.41
_cell_length_b   4.41
_cell_length_c   9.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Na2SbP
_chemical_formula_sum   'Na4 Sb2 P2'
_cell_volume   179.41
_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  0.06  0.5  0.26  1.0
  Na  Na1  2  0.06  0.5  0.97  1.0
  Sb  Sb2  2  0.0  0.0  0.62  1.0
  P  P3  2  0.0  0.0  0.0  1.0

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