data_La2HgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.75
_cell_length_b   3.75
_cell_length_c   7.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2HgPt
_chemical_formula_sum   'La2 Hg1 Pt1'
_cell_volume   108.53
_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
  La  La1  1  0.88  0.88  0.99  1.0
  La  La2  1  0.88  0.88  0.72  1.0
  Hg  Hg0  1  0.0  0.0  0.86  1.0
  Pt  Pt3  1  0.0  0.0  0.0  1.0

data_La2HgPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.3
_cell_length_b   5.3
_cell_length_c   7.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   La2HgPt
_chemical_formula_sum   'La4 Hg2 Pt2'
_cell_volume   217.06
_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
  La  La0  2  0.38  0.5  0.72  1.0
  La  La1  2  0.38  0.5  0.99  1.0
  Hg  Hg2  2  0.0  0.0  0.86  1.0
  Pt  Pt3  2  0.0  0.0  0.0  1.0

La La Hg Pt
La2PtHg crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two La2PtHg clusters. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 2-coordinate geometry to one Pt(1) and one Hg(1) atom. The La(1)-Pt(1) bond length is 0.66 Å. The La(1)-Hg(1) bond length is 1.24 Å. In the second La site, La(2) is bonded in a single-bond geometry to one Hg(1) atom. The La(2)-Hg(1) bond length is 1.24 Å. Pt(1) is bonded in a distorted L-shaped geometry to one La(1) and one Hg(1) atom. The Pt(1)-Hg(1) bond length is 1.09 Å. Hg(1) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Pt(1) atom.