data_NaNbSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.4
_cell_length_b   5.4
_cell_length_c   3.09
_cell_angle_alpha   91.43
_cell_angle_beta   91.43
_cell_angle_gamma   103.34
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbSn2
_chemical_formula_sum   'Na1 Nb1 Sn2'
_cell_volume   87.44
_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  0.35  0.0  0.0  1.0
  Sn  Sn2  1  0.61  0.88  0.54  1.0
  Sn  Sn3  1  0.61  0.12  0.54  1.0

data_NaNbSn2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.09
_cell_length_b   5.4
_cell_length_c   5.4
_cell_angle_alpha   103.34
_cell_angle_beta   91.43
_cell_angle_gamma   91.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbSn2
_chemical_formula_sum   'Na1 Nb1 Sn2'
_cell_volume   87.44
_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  0.35  0.0  1.0
  Sn  Sn2  1  0.54  0.61  0.12  1.0
  Sn  Sn3  1  0.54  0.61  0.88  1.0

Na Nb Sn Sn