data_HgIrRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   5.0
_cell_angle_alpha   99.36
_cell_angle_beta   99.36
_cell_angle_gamma   34.41
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HgIrRh2
_chemical_formula_sum   'Hg1 Ir1 Rh2'
_cell_volume   63.79
_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  Hg0  1  0.15  0.0  0.46  1.0
  Ir  Ir1  1  0.0  0.0  0.0  1.0
  Rh  Rh2  1  0.7  0.0  0.81  1.0
  Rh  Rh3  1  0.6  0.0  0.11  1.0

data_HgIrRh2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.83
_cell_length_b   4.79
_cell_length_c   5.0
_cell_angle_alpha   99.36
_cell_angle_beta   90.0
_cell_angle_gamma   107.2
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HgIrRh2
_chemical_formula_sum   'Hg1 Ir1 Rh2'
_cell_volume   63.79
_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  Hg0  1  0.0  0.85  0.54  1.0
  Ir  Ir1  1  0.0  0.0  0.0  1.0
  Rh  Rh2  1  0.0  0.3  0.19  1.0
  Rh  Rh3  1  0.0  0.4  0.89  1.0

Hg Ir Rh Rh
IrRh2Hg crystallizes in the triclinic P1 space group. Ir(1) is bonded in a 1-coordinate geometry to one Rh(1) and two equivalent Hg(1) atoms. The Ir(1)-Rh(1) bond length is 1.58 Å. There is one shorter (2.30 Å) and one longer (2.89 Å) Ir(1)-Hg(1) bond length. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 1-coordinate geometry to one Ir(1), one Rh(2), and two equivalent Hg(1) atoms. The Rh(1)-Rh(2) bond length is 1.63 Å. There is one shorter (2.93 Å) and one longer (2.99 Å) Rh(1)-Hg(1) bond length. In the second Rh site, Rh(2) is bonded in a 1-coordinate geometry to one Rh(1) and two equivalent Hg(1) atoms. There is one shorter (2.93 Å) and one longer (2.99 Å) Rh(2)-Hg(1) bond length. Hg(1) is bonded in a 8-coordinate geometry to two equivalent Ir(1), two equivalent Rh(1), two equivalent Rh(2), and two equivalent Hg(1) atoms. Both Hg(1)-Hg(1) bond lengths are 2.83 Å.