data_TiHg4Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.0
_cell_length_b   6.0
_cell_length_c   6.0
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TiHg4Cl
_chemical_formula_sum   'Ti1 Hg4 Cl1'
_cell_volume   152.97
_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
  Ti  Ti5  1  0.37  0.37  0.37  1.0
  Hg  Hg1  1  0.3  0.3  0.19  1.0
  Hg  Hg2  1  0.3  0.19  0.3  1.0
  Hg  Hg3  1  0.19  0.3  0.3  1.0
  Hg  Hg4  1  0.19  0.19  0.19  1.0
  Cl  Cl0  1  0.0  0.0  0.0  1.0

data_TiHg4Cl
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.0
_cell_length_b   6.0
_cell_length_c   14.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   TiHg4Cl
_chemical_formula_sum   'Ti3 Hg12 Cl3'
_cell_volume   458.9
_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
  Ti  Ti0  3  0.0  0.0  0.63  1.0
  Hg  Hg1  9  0.08  0.04  0.74  1.0
  Hg  Hg2  3  0.0  0.0  0.81  1.0
  Cl  Cl3  3  0.0  0.0  0.0  1.0

Ti Hg Hg Hg Hg Cl
TiHg4Cl is Copper structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three TiHg4Cl clusters. Ti(1) is bonded in a 3-coordinate geometry to three equivalent Hg(1) atoms. All Ti(1)-Hg(1) bond lengths are 1.57 Å. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 2-coordinate geometry to one Ti(1), one Hg(2), and two equivalent Hg(1) atoms. The Hg(1)-Hg(2) bond length is 1.22 Å. Both Hg(1)-Hg(1) bond lengths are 0.70 Å. In the second Hg site, Hg(2) is bonded in a distorted single-bond geometry to three equivalent Hg(1) and one Cl(1) atom. The Hg(2)-Cl(1) bond length is 2.74 Å. Cl(1) is bonded in a single-bond geometry to one Hg(2) atom.