data_MnC8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.49
_cell_length_b   4.49
_cell_length_c   4.49
_cell_angle_alpha   102.97
_cell_angle_beta   102.97
_cell_angle_gamma   123.45
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnC8
_chemical_formula_sum   'Mn1 C8'
_cell_volume   66.72
_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
  Mn  Mn8  1  0.0  0.0  0.0  1.0
  C  C0  1  0.74  0.26  0.13  1.0
  C  C1  1  0.26  0.74  0.13  1.0
  C  C2  1  0.1  0.0  0.0  1.0
  C  C3  1  0.74  0.74  0.13  1.0
  C  C4  1  0.0  0.1  0.0  1.0
  C  C5  1  0.05  0.05  0.0  1.0
  C  C6  1  0.49  0.0  0.0  1.0
  C  C7  1  0.0  0.49  0.0  1.0

data_MnC8
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.26
_cell_length_b   7.92
_cell_length_c   4.49
_cell_angle_alpha   90.0
_cell_angle_beta   118.27
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MnC8
_chemical_formula_sum   'Mn2 C16'
_cell_volume   133.44
_cell_formula_units_Z   2
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
  Mn  Mn0  2  0.0  0.0  0.0  1.0
  C  C1  4  0.13  0.26  0.13  1.0
  C  C2  4  0.25  0.25  -0.0  1.0
  C  C3  4  0.45  0.45  -0.0  1.0
  C  C4  2  0.38  0.0  0.13  1.0
  C  C5  2  0.45  0.5  -0.0  1.0

Mn C C C C C C C C