data_Na2TaSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.39
_cell_length_b   6.39
_cell_length_c   5.08
_cell_angle_alpha   108.0
_cell_angle_beta   108.0
_cell_angle_gamma   27.57
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaSn
_chemical_formula_sum   'Na2 Ta1 Sn1'
_cell_volume   90.92
_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  0.87  0.0  0.2  1.0
  Na  Na1  1  0.93  0.0  0.61  1.0
  Ta  Ta3  1  0.4  0.0  0.41  1.0
  Sn  Sn2  1  0.0  0.0  0.0  1.0

data_Na2TaSn
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.04
_cell_length_b   5.08
_cell_length_c   6.39
_cell_angle_alpha   108.0
_cell_angle_beta   103.78
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaSn
_chemical_formula_sum   'Na2 Ta1 Sn1'
_cell_volume   90.92
_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  0.2  0.87  1.0
  Na  Na1  1  0.0  0.61  0.93  1.0
  Ta  Ta2  1  0.0  0.41  0.4  1.0
  Sn  Sn3  1  0.0  0.0  0.0  1.0

Na Na Ta Sn