data_Ru3C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.36
_cell_length_b   8.36
_cell_length_c   8.36
_cell_angle_alpha   155.03
_cell_angle_beta   155.03
_cell_angle_gamma   35.61
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ru3C
_chemical_formula_sum   'Ru6 C2'
_cell_volume   103.96
_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
  Ru  Ru2  1  0.0  0.81  0.0  1.0
  Ru  Ru3  1  0.81  0.0  0.0  1.0
  Ru  Ru4  1  0.81  0.0  0.98  1.0
  Ru  Ru5  1  0.0  0.81  0.98  1.0
  Ru  Ru6  1  0.0  0.0  0.82  1.0
  Ru  Ru7  1  0.0  0.0  0.1  1.0
  C  C0  1  0.0  0.0  0.17  1.0
  C  C1  1  0.0  0.0  0.74  1.0

data_Ru3C
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.11
_cell_length_b   5.11
_cell_length_c   8.36
_cell_angle_alpha   90.0
_cell_angle_beta   107.8
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ru3C
_chemical_formula_sum   'Ru12 C4'
_cell_volume   207.92
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Ru  Ru0  4  0.08  0.1  0.17  1.0
  Ru  Ru1  4  0.1  0.1  0.19  1.0
  Ru  Ru2  2  0.1  0.0  0.1  1.0
  Ru  Ru3  2  0.32  0.5  0.82  1.0
  C  C4  2  0.17  0.0  0.17  1.0
  C  C5  2  0.24  0.5  0.74  1.0

Ru Ru Ru Ru Ru Ru C C
Ru Ru Ru Ru Ru Ru C C 0 3 o o - 0 6 o + o 1 2 o o - 1 6 + o o 2 6 + o + 3 6 o + + 4 7 o o o 5 6 o o o 