data_Al2BiOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.09
_cell_length_b   3.09
_cell_length_c   8.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2BiOs
_chemical_formula_sum   'Al2 Bi1 Os1'
_cell_volume   77.76
_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
  Al  Al0  1  0.55  0.55  0.4  1.0
  Al  Al1  1  0.55  0.55  0.72  1.0
  Bi  Bi2  1  0.0  0.0  0.06  1.0
  Os  Os3  1  0.0  0.0  0.0  1.0

data_Al2BiOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.38
_cell_length_b   4.38
_cell_length_c   8.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al2BiOs
_chemical_formula_sum   'Al4 Bi2 Os2'
_cell_volume   155.52
_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
  Al  Al0  2  0.05  0.5  0.4  1.0
  Al  Al1  2  0.05  0.5  0.72  1.0
  Bi  Bi2  2  0.0  0.0  0.06  1.0
  Os  Os3  2  0.0  0.0  0.0  1.0

Al Al Bi Os
Al Al Bi Os 0 2 o + o 0 2 + o o 0 2 + + o 0 0 + o o 0 0 o + o 0 1 o o o 1 3 o o + 1 3 o + + 1 3 + o + 1 3 + + + 1 2 o + + 1 2 + o + 1 2 + + + 1 1 + o o 1 1 o + o 2 3 o o o 
OsAl2Bi crystallizes in the monoclinic Cm space group. Os(1) is bonded in a single-bond geometry to four equivalent Al(2) and one Bi(1) atom. There are a spread of Os(1)-Al(2) bond distances ranging from 3.00-3.28 Å. The Os(1)-Bi(1) bond length is 0.49 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 6-coordinate geometry to one Al(2), four equivalent Al(1), and one Bi(1) atom. The Al(1)-Al(2) bond length is 2.64 Å. All Al(1)-Al(1) bond lengths are 3.09 Å. The Al(1)-Bi(1) bond length is 3.38 Å. In the second Al site, Al(2) is bonded in a 9-coordinate geometry to four equivalent Os(1), one Al(1), and four equivalent Al(2) atoms. All Al(2)-Al(2) bond lengths are 3.09 Å. Bi(1) is bonded in a single-bond geometry to one Os(1) and one Al(1) atom.