data_Li2SnBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.47
_cell_length_b   5.47
_cell_length_c   5.47
_cell_angle_alpha   130.69
_cell_angle_beta   130.69
_cell_angle_gamma   72.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2SnBr
_chemical_formula_sum   'Li2 Sn1 Br1'
_cell_volume   91.87
_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  0.28  0.0  0.21  1.0
  Li  Li2  1  0.0  0.28  0.21  1.0
  Sn  Sn3  1  0.0  0.0  0.41  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_Li2SnBr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.45
_cell_length_b   6.45
_cell_length_c   5.47
_cell_angle_alpha   90.0
_cell_angle_beta   126.15
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Li2SnBr
_chemical_formula_sum   'Li4 Sn2 Br2'
_cell_volume   183.75
_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  4  0.36  0.36  0.93  1.0
  Sn  Sn1  2  0.0  0.0  0.41  1.0
  Br  Br2  2  0.0  0.0  0.0  1.0

Li Li Sn Br
Li Li Sn Br 0 3 o o o 0 2 o o o 1 3 o o o 1 2 o o o 2 3 o o o 
Li2SnBr crystallizes in the monoclinic Cm space group. Li(1) is bonded in a single-bond geometry to two equivalent Sn(1) and one Br(1) atom. There is one shorter (2.43 Å) and one longer (3.31 Å) Li(1)-Sn(1) bond length. The Li(1)-Br(1) bond length is 1.17 Å. Sn(1) is bonded in a distorted hexagonal planar geometry to four equivalent Li(1) and two equivalent Br(1) atoms. There is one shorter (2.27 Å) and one longer (3.20 Å) Sn(1)-Br(1) bond length. Br(1) is bonded in a water-like geometry to two equivalent Li(1) and two equivalent Sn(1) atoms.