data_KSnOsPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.17
_cell_length_b   5.17
_cell_length_c   5.17
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSnOsPb
_chemical_formula_sum   'K1 Sn1 Os1 Pb1'
_cell_volume   97.74
_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  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.66  0.66  0.66  1.0
  Os  Os1  1  0.48  0.48  0.48  1.0
  Pb  Pb2  1  0.83  0.83  0.83  1.0

data_KSnOsPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.17
_cell_length_b   5.17
_cell_length_c   12.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   KSnOsPb
_chemical_formula_sum   'K3 Sn3 Os3 Pb3'
_cell_volume   293.21
_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  3  0.0  0.0  0.0  1.0
  Sn  Sn1  3  0.0  0.0  0.34  1.0
  Os  Os2  3  0.0  0.0  0.52  1.0
  Pb  Pb3  3  0.0  0.0  0.17  1.0

K Sn Os Pb
K Sn Os Pb 0 3 - - - 1 2 o o o 1 3 o o o 
KOsPbSn crystallizes in the trigonal R3m space group. K(1) is bonded in a distorted single-bond geometry to three equivalent Os(1), one Pb(1), and three equivalent Sn(1) atoms. All K(1)-Os(1) bond lengths are 3.54 Å. The K(1)-Pb(1) bond length is 2.18 Å. All K(1)-Sn(1) bond lengths are 2.99 Å. Os(1) is bonded in a distorted single-bond geometry to three equivalent K(1), three equivalent Pb(1), and one Sn(1) atom. All Os(1)-Pb(1) bond lengths are 2.99 Å. The Os(1)-Sn(1) bond length is 2.18 Å. Pb(1) is bonded in a distorted linear geometry to one K(1), three equivalent Os(1), and one Sn(1) atom. The Pb(1)-Sn(1) bond length is 2.18 Å. Sn(1) is bonded to three equivalent K(1), one Os(1), and one Pb(1) atom to form corner-sharing SnK3OsPb trigonal bipyramids.