data_Ba2GaOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.82
_cell_length_b   3.82
_cell_length_c   8.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2GaOs
_chemical_formula_sum   'Ba2 Ga1 Os1'
_cell_volume   120.84
_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
  Ba  Ba0  1  0.91  0.91  0.98  1.0
  Ba  Ba1  1  0.91  0.91  0.3  1.0
  Ga  Ga2  1  0.0  0.0  0.0  1.0
  Os  Os3  1  0.0  0.0  0.14  1.0

data_Ba2GaOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.4
_cell_length_b   5.4
_cell_length_c   8.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ba2GaOs
_chemical_formula_sum   'Ba4 Ga2 Os2'
_cell_volume   241.67
_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
  Ba  Ba0  2  0.41  0.5  0.3  1.0
  Ba  Ba1  2  0.41  0.5  0.98  1.0
  Ga  Ga2  2  0.0  0.0  0.0  1.0
  Os  Os3  2  0.0  0.0  0.14  1.0

Ba Ba Ga Os
Ba Ba Ga Os 0 2 + + + 0 3 + + + 1 3 + + o 2 3 o o o 
Ba2OsGa crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ba2OsGa clusters. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a single-bond geometry to one Ga(1) atom. The Ba(1)-Ga(1) bond length is 0.51 Å. In the second Ba site, Ba(2) is bonded in a single-bond geometry to one Os(1) atom. The Ba(2)-Os(1) bond length is 1.41 Å. Os(1) is bonded in a 2-coordinate geometry to one Ba(2) and one Ga(1) atom. The Os(1)-Ga(1) bond length is 1.16 Å. Ga(1) is bonded in a distorted water-like geometry to one Ba(1) and one Os(1) atom.