data_BiPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.17
_cell_length_b   7.17
_cell_length_c   4.24
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   147.77
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BiPt2
_chemical_formula_sum   'Bi2 Pt4'
_cell_volume   116.35
_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
  Bi  Bi0  1  0.99  0.58  0.18  1.0
  Bi  Bi1  1  0.99  0.42  0.06  1.0
  Pt  Pt2  1  0.99  0.19  0.18  1.0
  Pt  Pt3  1  0.99  0.38  0.18  1.0
  Pt  Pt4  1  0.99  0.62  0.06  1.0
  Pt  Pt5  1  0.99  0.81  0.06  1.0

data_BiPt2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.98
_cell_length_b   4.24
_cell_length_c   7.17
_cell_angle_alpha   90.0
_cell_angle_beta   106.11
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   BiPt2
_chemical_formula_sum   'Bi2 Pt4'
_cell_volume   116.35
_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
  Bi  Bi0  2  0.42  0.56  0.42  1.0
  Pt  Pt1  2  0.19  0.44  0.19  1.0
  Pt  Pt2  2  0.38  0.44  0.38  1.0

Bi Bi Pt Pt Pt Pt
Pt2Bi is Cubic alpha N2-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Pt2Bi clusters. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted single-bond geometry to one Pt(2) atom. The Pt(1)-Pt(2) bond length is 1.40 Å. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Pt(1) and one Bi(1) atom. The Pt(2)-Bi(1) bond length is 0.58 Å. Bi(1) is bonded in a single-bond geometry to one Pt(2) atom.