data_GaHg2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.32
_cell_length_b   5.32
_cell_length_c   5.32
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaHg2Cl
_chemical_formula_sum   'Ga1 Hg2 Cl1'
_cell_volume   106.73
_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  Ga1  1  0.65  0.65  0.65  1.0
  Hg  Hg2  1  0.76  0.76  0.76  1.0
  Hg  Hg3  1  0.88  0.88  0.88  1.0
  Cl  Cl0  1  0.0  0.0  0.0  1.0

data_GaHg2Cl
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.32
_cell_length_b   5.32
_cell_length_c   13.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   GaHg2Cl
_chemical_formula_sum   'Ga3 Hg6 Cl3'
_cell_volume   320.19
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.35  1.0
  Hg  Hg1  3  0.0  0.0  0.12  1.0
  Hg  Hg2  3  0.0  0.0  0.24  1.0
  Cl  Cl3  3  0.0  0.0  1.0  1.0

Ga Hg Hg Cl
Hg2GaCl is Copper structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three Hg2GaCl clusters. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a linear geometry to one Hg(2) and one Ga(1) atom. The Hg(1)-Hg(2) bond length is 1.53 Å. The Hg(1)-Ga(1) bond length is 1.53 Å. In the second Hg site, Hg(2) is bonded in a distorted single-bond geometry to one Hg(1) and one Cl(1) atom. The Hg(2)-Cl(1) bond length is 1.53 Å. Ga(1) is bonded in a single-bond geometry to one Hg(1) atom. Cl(1) is bonded in a single-bond geometry to one Hg(2) atom.