data_HgBiRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.94
_cell_length_b   6.94
_cell_length_c   6.94
_cell_angle_alpha   152.88
_cell_angle_beta   152.88
_cell_angle_gamma   38.73
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HgBiRh
_chemical_formula_sum   'Hg1 Bi1 Rh1'
_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
  Hg  Hg1  1  0.0  0.0  0.94  1.0
  Bi  Bi0  1  0.0  0.0  0.47  1.0
  Rh  Rh2  1  0.0  0.0  0.69  1.0

data_HgBiRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   6.94
_cell_angle_alpha   90.0
_cell_angle_beta   109.36
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HgBiRh
_chemical_formula_sum   'Hg2 Bi2 Rh2'
_cell_volume   138.86
_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
  Hg  Hg0  2  0.44  0.5  0.94  1.0
  Bi  Bi1  2  0.47  0.0  0.47  1.0
  Rh  Rh2  2  0.19  0.5  0.69  1.0

Hg Bi Rh
RhHgBi is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two RhHgBi clusters. Rh(1) is bonded in a linear geometry to one Hg(1) and one Bi(1) atom. The Rh(1)-Hg(1) bond length is 1.71 Å. The Rh(1)-Bi(1) bond length is 1.56 Å. Hg(1) is bonded in a single-bond geometry to one Rh(1) atom. Bi(1) is bonded in a single-bond geometry to one Rh(1) atom.