data_BiOsPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.36
_cell_length_b   3.36
_cell_length_c   9.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BiOsPb2
_chemical_formula_sum   'Bi1 Os1 Pb2'
_cell_volume   102.06
_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
  Bi  Bi0  1  0.0  0.0  0.53  1.0
  Os  Os1  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.68  0.68  0.73  1.0
  Pb  Pb3  1  0.68  0.68  0.33  1.0

data_BiOsPb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.75
_cell_length_b   4.75
_cell_length_c   9.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BiOsPb2
_chemical_formula_sum   'Bi2 Os2 Pb4'
_cell_volume   204.12
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Bi  Bi0  2  0.0  0.0  0.53  1.0
  Os  Os1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  2  0.18  0.5  0.33  1.0
  Pb  Pb3  2  0.18  0.5  0.73  1.0

Bi Os Pb Pb
Bi Os Pb Pb 0 3 - - o 0 2 - - o 1 2 - - - 1 2 - o - 1 2 o - - 1 3 - - o 1 3 - o o 1 3 o - o 1 1 + o o 1 1 o + o 
OsPb2Bi crystallizes in the monoclinic Cm space group. Os(1) is bonded in a 8-coordinate geometry to four equivalent Os(1), one Pb(2), and three equivalent Pb(1) atoms. All Os(1)-Os(1) bond lengths are 3.36 Å. The Os(1)-Pb(2) bond length is 3.35 Å. There is one shorter (2.91 Å) and two longer (3.54 Å) Os(1)-Pb(1) bond lengths. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 1-coordinate geometry to three equivalent Os(1) and one Bi(1) atom. The Pb(1)-Bi(1) bond length is 2.36 Å. In the second Pb site, Pb(2) is bonded in a distorted single-bond geometry to one Os(1) and one Bi(1) atom. The Pb(2)-Bi(1) bond length is 2.36 Å. Bi(1) is bonded in a distorted water-like geometry to one Pb(1) and one Pb(2) atom.