data_Cr2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.85
_cell_length_b   4.85
_cell_length_c   4.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2C
_chemical_formula_sum   'Cr6 C3'
_cell_volume   89.1
_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
  Cr  Cr3  1  0.82  0.42  0.3  1.0
  Cr  Cr4  1  0.21  0.0  0.3  1.0
  Cr  Cr5  1  0.39  0.78  0.3  1.0
  Cr  Cr6  1  0.18  0.42  0.07  1.0
  Cr  Cr7  1  0.64  0.0  0.07  1.0
  Cr  Cr8  1  0.61  0.78  0.07  1.0
  C  C0  1  0.0  0.0  0.0  1.0
  C  C1  1  0.0  0.8  0.18  1.0
  C  C2  1  0.43  0.4  0.18  1.0

data_Cr2C
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.37
_cell_length_b   4.85
_cell_length_c   4.85
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2C
_chemical_formula_sum   'Cr6 C3'
_cell_volume   89.1
_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
  Cr  Cr0  1  0.07  0.18  0.42  1.0
  Cr  Cr1  1  0.07  0.61  0.78  1.0
  Cr  Cr2  1  0.07  0.64  0.0  1.0
  Cr  Cr3  1  0.3  0.21  0.0  1.0
  Cr  Cr4  1  0.3  0.39  0.78  1.0
  Cr  Cr5  1  0.3  0.82  0.42  1.0
  C  C6  1  0.0  0.0  0.0  1.0
  C  C7  1  0.18  0.0  0.8  1.0
  C  C8  1  0.18  0.43  0.4  1.0

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