data_K2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.44
_cell_length_b   5.44
_cell_length_c   7.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Pt
_chemical_formula_sum   'K4 Pt2'
_cell_volume   187.42
_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
  K  K0  1  0.0  0.0  0.66  1.0
  K  K1  1  0.0  0.0  0.0  1.0
  K  K2  1  0.0  0.14  0.83  1.0
  K  K3  1  0.72  0.57  0.48  1.0
  Pt  Pt4  1  0.0  0.14  0.48  1.0
  Pt  Pt5  1  0.72  0.57  0.83  1.0

data_K2Pt
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.44
_cell_length_b   5.44
_cell_length_c   7.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Pt
_chemical_formula_sum   'K4 Pt2'
_cell_volume   187.42
_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
  K  K0  1  0.0  0.0  0.0  1.0
  K  K1  1  0.0  0.0  0.66  1.0
  K  K2  1  0.0  0.14  0.83  1.0
  K  K3  1  0.72  0.57  0.48  1.0
  Pt  Pt4  1  0.0  0.14  0.48  1.0
  Pt  Pt5  1  0.72  0.57  0.83  1.0

K K K K Pt Pt
K K K K Pt Pt 0 4 o o o 0 2 o o o 0 3 - - o 0 5 - - o 1 2 o o - 1 5 - - - 2 5 - - o 3 4 + + o 3 5 o o o 
K2Pt crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a distorted single-bond geometry to one K(3), one Pt(1), and one Pt(2) atom. The K(1)-K(3) bond length is 1.48 Å. The K(1)-Pt(1) bond length is 1.48 Å. The K(1)-Pt(2) bond length is 2.41 Å. In the second K site, K(2) is bonded in a 3-coordinate geometry to one K(3), one Pt(1), and one Pt(2) atom. The K(2)-K(3) bond length is 1.48 Å. The K(2)-Pt(1) bond length is 3.61 Å. The K(2)-Pt(2) bond length is 2.41 Å. In the third K site, K(3) is bonded in a 4-coordinate geometry to one K(1), one K(2), and two equivalent Pt(2) atoms. There is one shorter (3.37 Å) and one longer (3.42 Å) K(3)-Pt(2) bond length. In the fourth K site, K(4) is bonded in a 4-coordinate geometry to one Pt(2) and three equivalent Pt(1) atoms. The K(4)-Pt(2) bond length is 2.52 Å. There are a spread of K(4)-Pt(1) bond distances ranging from 2.69-3.42 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a single-bond geometry to one K(1), one K(2), and three equivalent K(4) atoms. In the second Pt site, Pt(2) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(4), and two equivalent K(3) atoms.