data_NaNbSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.03
_cell_length_b   5.03
_cell_length_c   6.56
_cell_angle_alpha   98.53
_cell_angle_beta   98.53
_cell_angle_gamma   36.5
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbSn2
_chemical_formula_sum   'Na1 Nb1 Sn2'
_cell_volume   97.58
_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  0.27  0.0  0.24  1.0
  Sn  Sn2  1  0.96  0.0  0.89  1.0
  Sn  Sn3  1  0.57  0.0  0.59  1.0

data_NaNbSn2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.15
_cell_length_b   5.03
_cell_length_c   6.56
_cell_angle_alpha   98.53
_cell_angle_beta   90.0
_cell_angle_gamma   108.25
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbSn2
_chemical_formula_sum   'Na1 Nb1 Sn2'
_cell_volume   97.58
_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  0.73  0.76  1.0
  Sn  Sn2  1  0.0  0.04  0.11  1.0
  Sn  Sn3  1  0.0  0.43  0.41  1.0

Na Nb Sn Sn