data_Rh3C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.74
_cell_length_b   4.74
_cell_length_c   4.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rh3C
_chemical_formula_sum   'Rh6 C2'
_cell_volume   106.67
_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
  Rh  Rh2  1  0.19  0.0  0.37  1.0
  Rh  Rh3  1  0.56  0.0  0.37  1.0
  Rh  Rh4  1  0.37  0.19  0.0  1.0
  Rh  Rh5  1  0.37  0.56  0.0  1.0
  Rh  Rh6  1  0.0  0.37  0.56  1.0
  Rh  Rh7  1  0.0  0.37  0.19  1.0
  C  C0  1  0.37  0.37  0.37  1.0
  C  C1  1  0.0  0.0  0.0  1.0

data_Rh3C
_symmetry_space_group_name_H-M   R3
_cell_length_a   6.71
_cell_length_b   6.71
_cell_length_c   8.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   Rh3C
_chemical_formula_sum   'Rh18 C6'
_cell_volume   320.0
_cell_formula_units_Z   6
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
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
  Rh  Rh0  9  0.0  0.81  0.19  1.0
  Rh  Rh1  9  0.02  0.42  0.98  1.0
  C  C2  3  0.0  0.0  0.0  1.0
  C  C3  3  0.0  0.0  0.37  1.0

Rh Rh Rh Rh Rh Rh C C