data_K2PtF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.91
_cell_length_b   5.91
_cell_length_c   4.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2PtF6
_chemical_formula_sum   'K2 Pt1 F6'
_cell_volume   143.67
_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  0.95  0.71  0.36  1.0
  K  K1  1  0.0  0.41  0.4  1.0
  Pt  Pt2  1  0.0  0.0  0.0  1.0
  F  F3  1  0.46  0.83  0.69  1.0
  F  F4  1  0.95  0.45  0.69  1.0
  F  F5  1  0.44  0.83  0.69  1.0
  F  F6  1  0.49  0.28  0.06  1.0
  F  F7  1  0.0  0.67  0.06  1.0
  F  F8  1  0.51  0.28  0.06  1.0

data_K2PtF6
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.75
_cell_length_b   5.91
_cell_length_c   5.91
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2PtF6
_chemical_formula_sum   'K2 Pt1 F6'
_cell_volume   143.67
_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  0.36  0.95  0.71  1.0
  K  K1  1  0.4  0.0  0.41  1.0
  Pt  Pt2  1  0.0  0.0  0.0  1.0
  F  F3  1  0.06  0.0  0.67  1.0
  F  F4  1  0.06  0.49  0.28  1.0
  F  F5  1  0.06  0.51  0.28  1.0
  F  F6  1  0.69  0.44  0.83  1.0
  F  F7  1  0.69  0.46  0.83  1.0
  F  F8  1  0.69  0.95  0.45  1.0

K K Pt F F F F F F
K K Pt F F F F F F 0 7 + o o 0 2 + + o 1 4 - o o 2 7 o - o 3 5 o o o 6 8 o o o 
K2PtF6 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one hydrogen fluoride hydrogen fluoride molecule, one potassium fluoride molecule, and one KPtF3 cluster. In the KPtF3 cluster, K(1) is bonded in a single-bond geometry to one F(5) atom. The K(1)-F(5) bond length is 1.46 Å. Pt(1) is bonded in a 1-coordinate geometry to one F(4) and one F(5) atom. The Pt(1)-F(4) bond length is 2.54 Å. The Pt(1)-F(5) bond length is 1.99 Å. There are three inequivalent F sites. In the first F site, F(4) is bonded in a distorted bent 150 degrees geometry to one Pt(1) and one F(6) atom. The F(4)-F(6) bond length is 0.11 Å. In the second F site, F(5) is bonded in a distorted single-bond geometry to one K(1) and one Pt(1) atom. In the third F site, F(6) is bonded in a distorted single-bond geometry to one F(4) atom.