data_NaSiRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.31
_cell_length_b   4.31
_cell_length_c   2.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.83
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSiRh2
_chemical_formula_sum   'Na1 Si1 Rh2'
_cell_volume   53.78
_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
  Si  Si3  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.5  0.55  0.45  1.0
  Rh  Rh2  1  0.5  0.45  0.45  1.0

data_NaSiRh2
_symmetry_space_group_name_H-M   Pmm2
_cell_length_a   4.31
_cell_length_b   4.31
_cell_length_c   2.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   25
_chemical_formula_structural   NaSiRh2
_chemical_formula_sum   'Na1 Si1 Rh2'
_cell_volume   53.81
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  '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
  Si  Si1  1  0.0  0.0  -0.0  1.0
  Rh  Rh2  2  0.5  0.45  0.45  1.0

Na Si Rh Rh 0 1 o o o 2 3 o o o 