data_LiBr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.88
_cell_length_b   5.88
_cell_length_c   5.88
_cell_angle_alpha   143.39
_cell_angle_beta   143.39
_cell_angle_gamma   52.73
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiBr2
_chemical_formula_sum   'Li1 Br2'
_cell_volume   71.81
_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  Li2  1  0.0  0.0  0.0  1.0
  Br  Br0  1  0.0  0.0  0.81  1.0
  Br  Br1  1  0.0  0.0  0.73  1.0

data_LiBr2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.22
_cell_length_b   5.22
_cell_length_c   5.88
_cell_angle_alpha   90.0
_cell_angle_beta   116.37
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiBr2
_chemical_formula_sum   'Li2 Br4'
_cell_volume   143.62
_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
  Br  Br1  2  0.0  0.0  0.19  1.0
  Br  Br2  2  0.0  0.0  0.27  1.0

Li Br Br
LiBr2 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two bromine lithium molecules. Li(1) is bonded in a single-bond geometry to one Br(1) atom. The Li(1)-Br(1) bond length is 1.14 Å. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a distorted linear geometry to one Li(1) and one Br(2) atom. The Br(1)-Br(2) bond length is 0.46 Å. In the second Br site, Br(2) is bonded in a single-bond geometry to one Br(1) atom.