data_ReNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.6
_cell_length_b   3.82
_cell_length_c   5.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ReNi
_chemical_formula_sum   'Re2 Ni2'
_cell_volume   52.2
_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  Re2  1  0.0  0.0  0.71  1.0
  Re  Re3  1  0.3  0.91  0.53  1.0
  Ni  Ni0  1  0.0  0.0  0.24  1.0
  Ni  Ni1  1  0.3  0.91  0.01  1.0

data_ReNi
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.6
_cell_length_b   3.82
_cell_length_c   5.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   ReNi
_chemical_formula_sum   'Re2 Ni2'
_cell_volume   52.2
_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  0.15  0.46  0.41  1.0
  Ni  Ni1  2  0.15  0.46  0.89  1.0

Re Re Ni Ni