data_K4OsPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.31
_cell_length_b   6.31
_cell_length_c   6.31
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K4OsPt
_chemical_formula_sum   'K4 Os1 Pt1'
_cell_volume   177.72
_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  0.36  0.57  1.0
  K  K1  1  0.36  0.57  0.36  1.0
  K  K2  1  0.57  0.36  0.36  1.0
  K  K3  1  0.57  0.57  0.57  1.0
  Os  Os4  1  0.0  0.0  0.0  1.0
  Pt  Pt5  1  0.23  0.23  0.23  1.0

data_K4OsPt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.31
_cell_length_b   6.31
_cell_length_c   15.46
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   K4OsPt
_chemical_formula_sum   'K12 Os3 Pt3'
_cell_volume   533.17
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  9  0.07  0.14  0.57  1.0
  K  K1  3  0.0  0.0  0.43  1.0
  Os  Os2  3  0.0  0.0  0.0  1.0
  Pt  Pt3  3  0.0  0.0  0.77  1.0

K K K K Os Pt
K K K K Os Pt 0 2 o o o 0 1 o o o 0 3 o o o 0 4 o o + 0 5 o o + 0 5 o o o 1 2 o o o 1 3 o o o 1 4 o + o 1 5 o + o 1 5 o o o 2 3 o o o 2 4 + o o 2 5 + o o 2 5 o o o 3 4 + + o 3 4 + o + 3 4 o + + 3 5 + o o 3 5 o + o 3 5 o o + 4 5 o - o 4 5 - o o 4 5 o o - 4 5 o o o 
K4OsPt crystallizes in the trigonal R3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one K(2), two equivalent K(1), one Os(1), and two equivalent Pt(1) atoms. The K(1)-K(2) bond length is 2.34 Å. Both K(1)-K(1) bond lengths are 1.35 Å. The K(1)-Os(1) bond length is 3.21 Å. There is one shorter (3.12 Å) and one longer (3.57 Å) K(1)-Pt(1) bond length. In the second K site, K(2) is bonded in a 9-coordinate geometry to three equivalent K(1), three equivalent Os(1), and three equivalent Pt(1) atoms. All K(2)-Os(1) bond lengths are 3.94 Å. All K(2)-Pt(1) bond lengths are 3.64 Å. Os(1) is bonded in a 6-coordinate geometry to three equivalent K(1) and three equivalent K(2) atoms. Pt(1) is bonded in a 9-coordinate geometry to three equivalent K(2) and six equivalent K(1) atoms.