data_HfHgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.72
_cell_length_b   4.72
_cell_length_c   2.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfHgPt
_chemical_formula_sum   'Hf1 Hg1 Pt1'
_cell_volume   56.19
_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
  Hf  Hf0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.36  0.36  0.46  1.0
  Pt  Pt2  1  0.0  0.72  0.46  1.0

data_HfHgPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.91
_cell_length_b   4.72
_cell_length_c   4.72
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfHgPt
_chemical_formula_sum   'Hf1 Hg1 Pt1'
_cell_volume   56.19
_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
  Hf  Hf0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.46  0.36  0.36  1.0
  Pt  Pt2  1  0.46  0.0  0.72  1.0

Hf Hg Pt
Hf Hg Pt 0 2 o - - 0 2 o - o 0 1 o o - 0 1 o o o 1 2 o - o 1 2 + o o 
HfPtHg crystallizes in the triclinic P1 space group. Hf(1) is bonded in a 4-coordinate geometry to two equivalent Pt(1) and two equivalent Hg(1) atoms. There is one shorter (1.86 Å) and one longer (2.05 Å) Hf(1)-Pt(1) bond length. There is one shorter (2.16 Å) and one longer (2.32 Å) Hf(1)-Hg(1) bond length. Pt(1) is bonded in a distorted L-shaped geometry to two equivalent Hf(1) and two equivalent Hg(1) atoms. There is one shorter (2.63 Å) and one longer (2.95 Å) Pt(1)-Hg(1) bond length. Hg(1) is bonded in a 4-coordinate geometry to two equivalent Hf(1) and two equivalent Pt(1) atoms.