[CIF]
data_Cu2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.80356310
_cell_length_b   2.80356310
_cell_length_c   9.13488311
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2C
_chemical_formula_sum   'Cu4 C2'
_cell_volume   62.18051231
_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
  C  C0  1  0.00000000  0.00000000  6.85116233  1
  C  C1  1  0.00000000  0.00000000  2.28372078  1
  Cu  Cu2  1  0.00000000  1.61863791  8.09418132  1
  Cu  Cu3  1  1.40178155  0.80931895  3.52673977  1
  Cu  Cu4  1  1.40178155  0.80931895  1.04070179  1
  Cu  Cu5  1  -0.00000000  1.61863791  5.60814334  1
[/CIF]
