data_Li2AlHg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.94
_cell_length_b   4.19
_cell_length_c   4.2
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2AlHg
_chemical_formula_sum   'Li2 Al1 Hg1'
_cell_volume   69.43
_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
  Li  Li3  1  0.97  0.1  0.0  1.0
  Al  Al0  1  0.97  0.0  0.1  1.0
  Hg  Hg1  1  0.0  0.1  0.1  1.0

data_Li2AlHg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.94
_cell_length_b   4.19
_cell_length_c   4.2
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2AlHg
_chemical_formula_sum   'Li2 Al1 Hg1'
_cell_volume   69.43
_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  Li0  1  0.0  0.0  0.0  1.0
  Li  Li1  1  0.97  0.1  -0.0  1.0
  Al  Al2  1  0.97  0.0  0.1  1.0
  Hg  Hg3  1  0.0  0.1  0.1  1.0

Li Li Al Hg
Li2HgAl is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Li2HgAl cluster. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted single-bond geometry to one Al(1) atom. The Li(1)-Al(1) bond length is 0.43 Å. In the second Li site, Li(2) is bonded in a distorted single-bond geometry to one Hg(1) atom. The Li(2)-Hg(1) bond length is 0.43 Å. Hg(1) is bonded in an L-shaped geometry to one Li(2) and one Al(1) atom. The Hg(1)-Al(1) bond length is 0.42 Å. Al(1) is bonded in an L-shaped geometry to one Li(1) and one Hg(1) atom.