data_Li3Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.41
_cell_length_b   3.41
_cell_length_c   6.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li3Cl
_chemical_formula_sum   'Li3 Cl1'
_cell_volume   71.37
_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
  Li  Li1  1  0.7  0.7  0.61  1.0
  Li  Li2  1  0.0  0.0  0.0  1.0
  Li  Li3  1  0.7  0.7  0.53  1.0
  Cl  Cl0  1  0.0  0.0  0.07  1.0

data_Li3Cl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.82
_cell_length_b   4.82
_cell_length_c   6.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Li3Cl
_chemical_formula_sum   'Li6 Cl2'
_cell_volume   142.74
_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
  Li  Li0  2  0.0  0.0  0.0  1.0
  Li  Li1  2  0.2  0.5  0.53  1.0
  Li  Li2  2  0.2  0.5  0.61  1.0
  Cl  Cl3  2  0.0  0.0  0.07  1.0

Li Li Li Cl
Li Li Li Cl 0 2 o o o 1 3 o o o 
(Li)2LiCl is alpha carbon monoxide-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two lithium chloride molecules and two lithium dimer molecules.