data_NiSb2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.81
_cell_length_b   4.81
_cell_length_c   4.81
_cell_angle_alpha   122.24
_cell_angle_beta   122.24
_cell_angle_gamma   86.16
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiSb2Pt
_chemical_formula_sum   'Ni1 Sb2 Pt1'
_cell_volume   75.8
_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  0.0  0.0  0.0  1.0
  Sb  Sb2  1  0.0  0.32  0.76  1.0
  Sb  Sb3  1  0.32  0.0  0.76  1.0
  Pt  Pt1  1  0.0  0.0  0.51  1.0

data_NiSb2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.57
_cell_length_b   6.57
_cell_length_c   4.81
_cell_angle_alpha   90.0
_cell_angle_beta   133.08
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NiSb2Pt
_chemical_formula_sum   'Ni2 Sb4 Pt2'
_cell_volume   151.61
_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  0.0  1.0
  Sb  Sb1  4  0.34  0.34  0.43  1.0
  Pt  Pt2  2  0.0  0.0  0.51  1.0

Ni Sb Sb Pt
Ni Sb Sb Pt 0 1 o o - 0 1 o - - 0 2 - o - 0 2 o o - 0 3 o o - 0 3 o o o 1 3 o o o 2 3 o o o 
PtNiSb2 crystallizes in the monoclinic Cm space group. Pt(1) is bonded in a distorted water-like geometry to two equivalent Ni(1) and two equivalent Sb(1) atoms. There is one shorter (2.34 Å) and one longer (2.47 Å) Pt(1)-Ni(1) bond length. Both Pt(1)-Sb(1) bond lengths are 1.36 Å. Ni(1) is bonded in a 6-coordinate geometry to two equivalent Pt(1) and four equivalent Sb(1) atoms. There are two shorter (2.39 Å) and two longer (2.81 Å) Ni(1)-Sb(1) bond lengths. Sb(1) is bonded in a single-bond geometry to one Pt(1) and two equivalent Ni(1) atoms.