data_InHg2Br
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.82
_cell_length_b   6.82
_cell_length_c   6.82
_cell_angle_alpha   141.16
_cell_angle_beta   141.16
_cell_angle_gamma   56.1
_symmetry_Int_Tables_number   1
_chemical_formula_structural   InHg2Br
_chemical_formula_sum   'In1 Hg2 Br1'
_cell_volume   123.87
_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
  In  In3  1  0.0  0.0  0.02  1.0
  Hg  Hg1  1  0.27  0.0  0.01  1.0
  Hg  Hg2  1  0.0  0.27  0.01  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_InHg2Br
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.42
_cell_length_b   6.42
_cell_length_c   6.82
_cell_angle_alpha   90.0
_cell_angle_beta   118.05
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   InHg2Br
_chemical_formula_sum   'In2 Hg4 Br2'
_cell_volume   247.73
_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
  In  In0  2  0.0  0.0  0.98  1.0
  Hg  Hg1  4  0.13  0.13  0.26  1.0
  Br  Br2  2  0.0  0.0  0.0  1.0

In Hg Hg Br
Hg2InBr is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Hg2InBr clusters. Hg(1) is bonded in a single-bond geometry to one Br(1) atom. The Hg(1)-Br(1) bond length is 1.78 Å. In(1) is bonded in a single-bond geometry to one Br(1) atom. The In(1)-Br(1) bond length is 0.13 Å. Br(1) is bonded in a distorted single-bond geometry to two equivalent Hg(1) and one In(1) atom.