data_AuC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.03
_cell_length_b   4.03
_cell_length_c   4.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AuC2
_chemical_formula_sum   'Au2 C4'
_cell_volume   67.27
_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
  Au  Au0  1  0.0  0.32  0.6  1.0
  Au  Au1  1  0.01  0.16  0.2  1.0
  C  C2  1  0.0  0.0  0.4  1.0
  C  C3  1  0.0  0.0  0.0  1.0
  C  C4  1  0.01  0.16  0.6  1.0
  C  C5  1  0.0  0.32  0.2  1.0

data_AuC2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.03
_cell_length_b   6.97
_cell_length_c   4.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AuC2
_chemical_formula_sum   'Au4 C8'
_cell_volume   134.53
_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
  Au  Au0  2  0.16  0.0  0.2  1.0
  Au  Au1  2  0.32  0.0  0.6  1.0
  C  C2  2  0.0  0.0  0.0  1.0
  C  C3  2  0.0  0.0  0.4  1.0
  C  C4  2  0.16  0.0  0.6  1.0
  C  C5  2  0.32  0.0  0.2  1.0

Au Au C C C C
Au Au C C C C 0 4 o o o 1 5 o o o 1 2 o o o 1 3 o o o 2 4 o o o 