data_ReSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.13
_cell_length_b   4.83
_cell_length_c   4.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ReSn
_chemical_formula_sum   'Re2 Sn2'
_cell_volume   71.88
_cell_formula_units_Z   2
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
  Re  Re0  1  0.57  0.0  0.81  1.0
  Re  Re1  1  0.0  0.42  0.93  1.0
  Sn  Sn2  1  0.0  0.0  0.47  1.0
  Sn  Sn3  1  0.57  0.42  0.27  1.0

data_ReSn
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.13
_cell_length_b   4.75
_cell_length_c   4.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   ReSn
_chemical_formula_sum   'Re2 Sn2'
_cell_volume   71.88
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Re  Re0  2  0.22  0.06  0.71  1.0
  Sn  Sn1  2  0.22  0.6  0.29  1.0

Re Re Sn Sn
Re Re Sn Sn 0 2 o o o 0 2 + o o 0 1 + o o 1 3 - o + 1 3 o o + 2 3 - o o 