data_Fe2HgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.8
_cell_length_b   4.8
_cell_length_c   4.8
_cell_angle_alpha   131.59
_cell_angle_beta   131.59
_cell_angle_gamma   70.87
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Fe2HgPt
_chemical_formula_sum   'Fe2 Hg1 Pt1'
_cell_volume   60.61
_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
  Fe  Fe0  1  0.0  0.97  0.96  1.0
  Fe  Fe1  1  0.0  0.0  0.0  1.0
  Hg  Hg2  1  0.97  0.0  0.96  1.0
  Pt  Pt3  1  0.0  0.0  0.91  1.0

data_Fe2HgPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.94
_cell_length_b   3.94
_cell_length_c   4.8
_cell_angle_alpha   114.2
_cell_angle_beta   114.2
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Fe2HgPt
_chemical_formula_sum   'Fe2 Hg1 Pt1'
_cell_volume   60.61
_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
  Fe  Fe0  1  0.0  0.0  0.0  1.0
  Fe  Fe1  1  0.01  0.97  0.01  1.0
  Hg  Hg2  1  0.04  0.0  0.01  1.0
  Pt  Pt3  1  0.09  0.0  0.09  1.0

Fe Fe Hg Pt
Fe Fe Hg Pt 0 1 o + + 0 2 - + o 0 3 o + o 1 2 - o - 2 3 + o o 
Fe2PtHg is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Fe2PtHg cluster. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 3-coordinate geometry to one Fe(2), one Pt(1), and one Hg(1) atom. The Fe(1)-Fe(2) bond length is 0.16 Å. The Fe(1)-Pt(1) bond length is 0.33 Å. The Fe(1)-Hg(1) bond length is 0.18 Å. In the second Fe site, Fe(2) is bonded in a 2-coordinate geometry to one Fe(1) and one Hg(1) atom. The Fe(2)-Hg(1) bond length is 0.16 Å. Pt(1) is bonded in a 2-coordinate geometry to one Fe(1) and one Hg(1) atom. The Pt(1)-Hg(1) bond length is 0.33 Å. Hg(1) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), and one Pt(1) atom.