data_Ga2HgSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.21
_cell_length_b   3.21
_cell_length_c   9.46
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   102.69
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2HgSb
_chemical_formula_sum   'Ga2 Hg1 Sb1'
_cell_volume   94.91
_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
  Ga  Ga0  1  0.0  0.0  0.32  1.0
  Ga  Ga1  1  0.0  0.0  0.29  1.0
  Hg  Hg2  1  0.0  0.0  0.92  1.0
  Sb  Sb3  1  0.0  0.0  0.11  1.0

data_Ga2HgSb
_symmetry_space_group_name_H-M   Cmm2
_cell_length_a   4.01
_cell_length_b   5.01
_cell_length_c   9.46
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   35
_chemical_formula_structural   Ga2HgSb
_chemical_formula_sum   'Ga4 Hg2 Sb2'
_cell_volume   189.82
_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, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z'
  6  '-x+1/2, -y+1/2, z'
  7  '-x+1/2, y+1/2, z'
  8  '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
  Ga  Ga0  2  0.0  0.0  0.68  1.0
  Ga  Ga1  2  0.0  0.0  0.71  1.0
  Hg  Hg2  2  0.0  0.0  0.08  1.0
  Sb  Sb3  2  0.0  0.0  0.89  1.0

Ga Ga Hg Sb
Ga Ga Hg Sb 0 1 o o o 0 3 o o o 1 3 o o o 2 3 o o + 
HgGa2Sb is Cyanogen Chloride-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one HgGa2Sb cluster. Hg(1) is bonded in a single-bond geometry to one Sb(1) atom. The Hg(1)-Sb(1) bond length is 1.79 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a single-bond geometry to one Ga(2) atom. The Ga(1)-Ga(2) bond length is 0.28 Å. In the second Ga site, Ga(2) is bonded in a linear geometry to one Ga(1) and one Sb(1) atom. The Ga(2)-Sb(1) bond length is 1.65 Å. Sb(1) is bonded in a linear geometry to one Hg(1) and one Ga(2) atom.