data_SiRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.87
_cell_length_b   2.87
_cell_length_c   7.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiRh
_chemical_formula_sum   'Si2 Rh2'
_cell_volume   56.39
_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
  Si  Si2  1  0.44  0.83  0.94  1.0
  Si  Si3  1  0.0  0.66  0.95  1.0
  Rh  Rh0  1  0.44  0.83  0.7  1.0
  Rh  Rh1  1  0.0  0.66  0.19  1.0

data_SiRh
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.87
_cell_length_b   2.87
_cell_length_c   7.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   SiRh
_chemical_formula_sum   'Si2 Rh2'
_cell_volume   56.39
_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
  Si  Si0  2  0.22  0.59  0.49  1.0
  Rh  Rh1  2  0.22  0.59  0.25  1.0

Si Si Rh Rh