data_NaSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.89
_cell_length_b   5.89
_cell_length_c   5.77
_cell_angle_alpha   97.98
_cell_angle_beta   97.98
_cell_angle_gamma   33.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSn3
_chemical_formula_sum   'Na1 Sn3'
_cell_volume   109.47
_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
  Sn  Sn1  1  0.22  0.0  0.85  1.0
  Sn  Sn2  1  0.19  0.0  0.23  1.0
  Sn  Sn3  1  0.24  0.0  0.48  1.0

data_NaSn3
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.41
_cell_length_b   5.77
_cell_length_c   5.89
_cell_angle_alpha   97.98
_cell_angle_beta   106.82
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSn3
_chemical_formula_sum   'Na1 Sn3'
_cell_volume   109.47
_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
  Sn  Sn1  1  0.0  0.23  0.19  1.0
  Sn  Sn2  1  0.0  0.48  0.24  1.0
  Sn  Sn3  1  0.0  0.85  0.22  1.0

Na Sn Sn Sn