data_RhC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.61
_cell_length_b   3.61
_cell_length_c   4.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   83.79
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RhC2
_chemical_formula_sum   'Rh2 C4'
_cell_volume   61.02
_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  Rh4  1  0.69  0.12  0.52  1.0
  Rh  Rh5  1  0.69  0.88  0.17  1.0
  C  C0  1  0.04  0.67  0.52  1.0
  C  C1  1  0.34  0.33  0.17  1.0
  C  C2  1  0.34  0.67  0.52  1.0
  C  C3  1  0.04  0.33  0.17  1.0

data_RhC2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.61
_cell_length_b   3.61
_cell_length_c   4.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   96.21
_symmetry_Int_Tables_number   2
_chemical_formula_structural   RhC2
_chemical_formula_sum   'Rh2 C4'
_cell_volume   61.02
_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
  Rh  Rh0  2  0.5  0.12  0.67  1.0
  C  C1  2  0.15  0.33  0.33  1.0
  C  C2  2  0.15  0.67  0.67  1.0

Rh Rh C C C C