data_Ni2SbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.33
_cell_length_b   3.33
_cell_length_c   5.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ni2SbPt
_chemical_formula_sum   'Ni2 Sb1 Pt1'
_cell_volume   59.65
_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
  Ni  Ni0  1  0.66  0.66  0.07  1.0
  Ni  Ni1  1  0.0  0.0  0.27  1.0
  Sb  Sb3  1  0.0  0.0  0.14  1.0
  Pt  Pt2  1  0.66  0.66  0.61  1.0

data_Ni2SbPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   5.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ni2SbPt
_chemical_formula_sum   'Ni4 Sb2 Pt2'
_cell_volume   119.3
_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
  Ni  Ni0  2  0.0  0.0  0.27  1.0
  Ni  Ni1  2  0.16  0.5  0.07  1.0
  Sb  Sb2  2  0.0  0.0  0.14  1.0
  Pt  Pt3  2  0.16  0.5  0.61  1.0

Ni Ni Sb Pt
PtNi2Sb crystallizes in the monoclinic Cm space group. Pt(1) is bonded in a 2-coordinate geometry to one Ni(1) and one Ni(2) atom. The Pt(1)-Ni(1) bond length is 2.48 Å. The Pt(1)-Ni(2) bond length is 2.39 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to one Pt(1) and three equivalent Sb(1) atoms. There is one shorter (1.63 Å) and two longer (2.50 Å) Ni(1)-Sb(1) bond lengths. In the second Ni site, Ni(2) is bonded in a single-bond geometry to one Pt(1) and one Sb(1) atom. The Ni(2)-Sb(1) bond length is 0.73 Å. Sb(1) is bonded in a distorted single-bond geometry to one Ni(2) and three equivalent Ni(1) atoms.