data_K2SbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.25
_cell_length_b   6.25
_cell_length_c   6.25
_cell_angle_alpha   140.6
_cell_angle_beta   137.72
_cell_angle_gamma   59.16
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SbPt
_chemical_formula_sum   'K2 Sb1 Pt1'
_cell_volume   103.45
_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
  K  K0  1  0.11  0.0  0.85  1.0
  K  K1  1  0.0  0.26  0.59  1.0
  Sb  Sb3  1  0.0  0.0  0.0  1.0
  Pt  Pt2  1  0.0  0.0  0.44  1.0

data_K2SbPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.22
_cell_length_b   4.51
_cell_length_c   6.25
_cell_angle_alpha   111.14
_cell_angle_beta   109.7
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SbPt
_chemical_formula_sum   'K2 Sb1 Pt1'
_cell_volume   103.45
_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
  K  K0  1  0.25  0.15  0.25  1.0
  K  K1  1  0.41  0.67  0.67  1.0
  Sb  Sb2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.56  0.56  0.56  1.0

K K Sb Pt
K2PtSb crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one K2PtSb cluster. There are two inequivalent K sites. In the first K site, K(1) is bonded in a bent 150 degrees geometry to one Pt(1) and one Sb(1) atom. The K(1)-Pt(1) bond length is 2.14 Å. The K(1)-Sb(1) bond length is 1.49 Å. In the second K site, K(2) is bonded in a single-bond geometry to one Pt(1) atom. The K(2)-Pt(1) bond length is 1.06 Å. Pt(1) is bonded in a distorted single-bond geometry to one K(1) and one K(2) atom. Sb(1) is bonded in a distorted single-bond geometry to one K(1) atom.