data_K4OsPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.2
_cell_length_b   6.2
_cell_length_c   6.2
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K4OsPb
_chemical_formula_sum   'K4 Os1 Pb1'
_cell_volume   168.38
_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  0.48  0.29  0.29  1.0
  K  K1  1  0.29  0.29  0.48  1.0
  K  K2  1  0.29  0.48  0.29  1.0
  K  K3  1  0.48  0.48  0.48  1.0
  Os  Os4  1  0.0  0.0  0.0  1.0
  Pb  Pb5  1  0.19  0.19  0.19  1.0

data_K4OsPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.2
_cell_length_b   6.2
_cell_length_c   15.18
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   K4OsPb
_chemical_formula_sum   'K12 Os3 Pb3'
_cell_volume   505.15
_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  0.06  0.13  0.65  1.0
  K  K1  3  0.0  0.0  0.52  1.0
  Os  Os2  3  0.0  0.0  0.0  1.0
  Pb  Pb3  3  0.0  0.0  0.81  1.0

K K K K Os Pb
K K K K Os Pb 0 2 o o o 0 1 o o o 0 3 o o o 0 4 + 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 o 2 3 o o o 2 4 o + o 2 5 o o o 4 5 o o o 
K4OsPb crystallizes in the trigonal R3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to one K(2), two equivalent K(1), one Os(1), and one Pb(1) atom. The K(1)-K(2) bond length is 2.08 Å. Both K(1)-K(1) bond lengths are 1.20 Å. The K(1)-Os(1) bond length is 2.90 Å. The K(1)-Pb(1) bond length is 2.51 Å. In the second K site, K(2) is bonded in a 6-coordinate geometry to three equivalent K(1) and three equivalent Pb(1) atoms. All K(2)-Pb(1) bond lengths are 3.64 Å. Os(1) is bonded in a distorted trigonal pyramidal geometry to three equivalent K(1) and one Pb(1) atom. The Os(1)-Pb(1) bond length is 2.91 Å. Pb(1) is bonded in a 7-coordinate geometry to three equivalent K(1), three equivalent K(2), and one Os(1) atom.