data_Mn2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.83
_cell_length_b   4.83
_cell_length_c   4.4
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2C
_chemical_formula_sum   'Mn6 C3'
_cell_volume   89.04
_cell_formula_units_Z   3
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  Mn3  1  0.83  0.43  0.33  1.0
  Mn  Mn4  1  0.18  0.0  0.33  1.0
  Mn  Mn5  1  0.41  0.75  0.33  1.0
  Mn  Mn6  1  0.17  0.43  0.07  1.0
  Mn  Mn7  1  0.65  0.0  0.07  1.0
  Mn  Mn8  1  0.59  0.75  0.07  1.0
  C  C0  1  0.0  0.0  0.0  1.0
  C  C1  1  0.0  0.79  0.2  1.0
  C  C2  1  0.42  0.4  0.2  1.0

data_Mn2C
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.4
_cell_length_b   4.83
_cell_length_c   4.83
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2C
_chemical_formula_sum   'Mn6 C3'
_cell_volume   89.04
_cell_formula_units_Z   3
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  Mn0  1  0.07  0.17  0.43  1.0
  Mn  Mn1  1  0.07  0.59  0.75  1.0
  Mn  Mn2  1  0.07  0.65  0.0  1.0
  Mn  Mn3  1  0.33  0.18  0.0  1.0
  Mn  Mn4  1  0.33  0.41  0.75  1.0
  Mn  Mn5  1  0.33  0.83  0.43  1.0
  C  C6  1  0.0  0.0  0.0  1.0
  C  C7  1  0.2  -0.0  0.79  1.0
  C  C8  1  0.2  0.42  0.4  1.0

Mn Mn Mn Mn Mn Mn C C C
Mn Mn Mn Mn Mn Mn C C C 0 8 o o o 0 7 + o o 1 7 o - o 1 6 o o o 1 8 o o o 2 3 o o o 2 4 o + o 2 5 o o o 3 8 o o o 4 5 o - o 5 8 o o o 6 7 o - o 