data_LaHgBiPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaHgBiPt
_chemical_formula_sum   'La1 Hg1 Bi1 Pt1'
_cell_volume   99.14
_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  La2  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.84  0.84  0.84  1.0
  Bi  Bi0  1  0.51  0.51  0.51  1.0
  Pt  Pt3  1  0.67  0.67  0.67  1.0

data_LaHgBiPt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   12.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   LaHgBiPt
_chemical_formula_sum   'La3 Hg3 Bi3 Pt3'
_cell_volume   297.41
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Hg  Hg1  3  0.0  0.0  0.16  1.0
  Bi  Bi2  3  0.0  0.0  0.49  1.0
  Pt  Pt3  3  0.0  0.0  0.33  1.0

La Hg Bi Pt
La Hg Bi Pt 0 1 - - - 1 3 o o o 2 3 o o o 
LaPtHgBi crystallizes in the trigonal R3m space group. La(1) is bonded in a 4-coordinate geometry to three equivalent Pt(1) and one Hg(1) atom. All La(1)-Pt(1) bond lengths are 3.00 Å. The La(1)-Hg(1) bond length is 2.08 Å. Pt(1) is bonded to three equivalent La(1), one Hg(1), and one Bi(1) atom to form corner-sharing PtLa3HgBi trigonal bipyramids. The Pt(1)-Hg(1) bond length is 2.08 Å. The Pt(1)-Bi(1) bond length is 2.08 Å. Hg(1) is bonded in a linear geometry to one La(1) and one Pt(1) atom. Bi(1) is bonded in a single-bond geometry to one Pt(1) atom.