data_CuCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.64
_cell_length_b   4.64
_cell_length_c   3.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuCl2
_chemical_formula_sum   'Cu1 Cl2'
_cell_volume   60.29
_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
  Cu  Cu2  1  0.0  0.0  0.0  1.0
  Cl  Cl0  1  0.32  0.34  0.61  1.0
  Cl  Cl1  1  0.0  0.68  0.61  1.0

data_CuCl2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.64
_cell_length_b   8.04
_cell_length_c   3.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CuCl2
_chemical_formula_sum   'Cu2 Cl4'
_cell_volume   120.57
_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
  Cu  Cu0  2  0.0  0.0  0.0  1.0
  Cl  Cl1  4  0.15  0.17  0.61  1.0

Cu Cl Cl
Cu Cl Cl 0 2 o - - 0 1 o o - 