data_HgPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   4.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   147.48
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HgPd
_chemical_formula_sum   'Hg2 Pd2'
_cell_volume   75.03
_cell_formula_units_Z   2
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  0.53  0.25  0.49  1.0
  Hg  Hg1  1  0.53  0.75  0.16  1.0
  Pd  Pd2  1  0.53  0.06  0.49  1.0
  Pd  Pd3  1  0.53  0.94  0.16  1.0

data_HgPd
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.07
_cell_length_b   4.65
_cell_length_c   5.48
_cell_angle_alpha   90.0
_cell_angle_beta   106.26
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   HgPd
_chemical_formula_sum   'Hg2 Pd2'
_cell_volume   75.03
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.25  0.34  0.25  1.0
  Pd  Pd1  2  0.06  0.34  0.06  1.0

Hg Hg Pd Pd
Hg Hg Pd Pd 0 2 o o o 1 3 o o o 
PdHg crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two PdHg clusters. Pd(1) is bonded in a distorted single-bond geometry to one Hg(1) atom. The Pd(1)-Hg(1) bond length is 1.03 Å. Hg(1) is bonded in a single-bond geometry to one Pd(1) atom.