data_CuSn2Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.83
_cell_length_b   4.83
_cell_length_c   4.83
_cell_angle_alpha   126.43
_cell_angle_beta   126.43
_cell_angle_gamma   79.18
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuSn2Os
_chemical_formula_sum   'Cu1 Sn2 Os1'
_cell_volume   70.43
_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
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Sn  Sn2  1  0.18  0.0  0.86  1.0
  Sn  Sn3  1  0.0  0.18  0.86  1.0
  Os  Os1  1  0.0  0.0  0.72  1.0

data_CuSn2Os
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.15
_cell_length_b   6.15
_cell_length_c   4.83
_cell_angle_alpha   90.0
_cell_angle_beta   129.59
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CuSn2Os
_chemical_formula_sum   'Cu2 Sn4 Os2'
_cell_volume   140.85
_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
  Cu  Cu0  2  0.0  0.0  0.0  1.0
  Sn  Sn1  4  0.41  0.41  0.68  1.0
  Os  Os2  2  0.0  0.0  0.72  1.0

Cu Sn Sn Os
OsCuSn2 is Copper structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two OsCuSn2 clusters. Os(1) is bonded in a water-like geometry to one Cu(1) and two equivalent Sn(1) atoms. The Os(1)-Cu(1) bond length is 1.35 Å. Both Os(1)-Sn(1) bond lengths are 0.70 Å. Cu(1) is bonded in a 3-coordinate geometry to one Os(1) and two equivalent Sn(1) atoms. Both Cu(1)-Sn(1) bond lengths are 1.36 Å. Sn(1) is bonded in a single-bond geometry to one Os(1) and one Cu(1) atom.