data_ZnOs2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.53
_cell_length_b   4.53
_cell_length_c   4.53
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnOs2Pb
_chemical_formula_sum   'Zn1 Os2 Pb1'
_cell_volume   65.73
_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
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  Os  Os0  1  0.6  0.6  0.6  1.0
  Os  Os1  1  0.8  0.8  0.8  1.0
  Pb  Pb2  1  0.2  0.2  0.2  1.0

data_ZnOs2Pb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.53
_cell_length_b   4.53
_cell_length_c   11.1
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ZnOs2Pb
_chemical_formula_sum   'Zn3 Os6 Pb3'
_cell_volume   197.18
_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
  Zn  Zn0  3  0.0  0.0  0.0  1.0
  Os  Os1  3  0.0  0.0  0.2  1.0
  Os  Os2  3  0.0  0.0  0.4  1.0
  Pb  Pb3  3  0.0  0.0  0.8  1.0

Zn Os Os Pb
Zn Os Os Pb 0 2 - - - 0 1 - - o 0 1 - o - 0 1 o - - 0 3 o o o 0 3 o o - 0 3 - o o 0 3 o - o 1 2 o - o 1 2 - o o 1 2 o o - 1 2 o o o 1 3 o o + 1 3 o + o 1 3 + o o 2 3 o + + 2 3 + o + 2 3 + + o 
Os2ZnPb crystallizes in the trigonal R3m space group. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a 7-coordinate geometry to one Os(2), three equivalent Zn(1), and three equivalent Pb(1) atoms. The Os(1)-Os(2) bond length is 2.25 Å. All Os(1)-Zn(1) bond lengths are 2.71 Å. All Os(1)-Pb(1) bond lengths are 2.71 Å. In the second Os site, Os(2) is bonded in a distorted single-bond geometry to one Os(1) and one Zn(1) atom. The Os(2)-Zn(1) bond length is 2.17 Å. Zn(1) is bonded in a distorted linear geometry to one Os(2), three equivalent Os(1), and one Pb(1) atom. The Zn(1)-Pb(1) bond length is 2.25 Å. Pb(1) is bonded in a distorted single-bond geometry to three equivalent Os(1) and one Zn(1) atom.