data_Ga2CuOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.68
_cell_length_b   4.68
_cell_length_c   4.68
_cell_angle_alpha   132.07
_cell_angle_beta   132.07
_cell_angle_gamma   70.12
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2CuOs
_chemical_formula_sum   'Ga2 Cu1 Os1'
_cell_volume   55.41
_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
  Ga  Ga1  1  0.0  0.9  0.92  1.0
  Ga  Ga2  1  0.9  0.0  0.92  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Os  Os3  1  0.0  0.0  0.83  1.0

data_Ga2CuOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.38
_cell_length_b   5.38
_cell_length_c   4.68
_cell_angle_alpha   90.0
_cell_angle_beta   125.06
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ga2CuOs
_chemical_formula_sum   'Ga4 Cu2 Os2'
_cell_volume   110.82
_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
  Ga  Ga0  4  0.05  0.05  0.01  1.0
  Cu  Cu1  2  0.0  0.0  0.0  1.0
  Os  Os2  2  0.0  0.0  0.83  1.0

Ga Ga Cu Os
Ga Ga Cu Os 0 2 o + + 0 3 o + o 1 2 + o + 1 3 + o o 2 3 o o - 
OsCuGa2 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two OsCuGa2 clusters. Os(1) is bonded in a 3-coordinate geometry to one Cu(1) and two equivalent Ga(1) atoms. The Os(1)-Cu(1) bond length is 0.79 Å. Both Os(1)-Ga(1) bond lengths are 0.78 Å. Cu(1) is bonded in a water-like geometry to one Os(1) and two equivalent Ga(1) atoms. Both Cu(1)-Ga(1) bond lengths are 0.35 Å. Ga(1) is bonded in a distorted single-bond geometry to one Os(1) and one Cu(1) atom.