data_Cu2BOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.82
_cell_length_b   7.82
_cell_length_c   7.82
_cell_angle_alpha   19.35
_cell_angle_beta   19.35
_cell_angle_gamma   19.35
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2BOs
_chemical_formula_sum   'Cu2 B1 Os1'
_cell_volume   45.94
_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  Cu1  1  0.0  0.0  0.13  1.0
  Cu  Cu2  1  0.0  0.0  0.9  1.0
  B  B0  1  0.0  0.0  0.0  1.0
  Os  Os3  1  0.0  0.0  0.51  1.0

data_Cu2BOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.55
_cell_length_b   2.63
_cell_length_c   7.82
_cell_angle_alpha   90.0
_cell_angle_beta   101.19
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cu2BOs
_chemical_formula_sum   'Cu4 B2 Os2'
_cell_volume   91.88
_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  0.1  1.0
  Cu  Cu1  2  0.0  0.0  0.87  1.0
  B  B2  2  0.0  0.0  0.0  1.0
  Os  Os3  2  0.0  0.0  0.49  1.0

Cu Cu B Os
OsCu2B crystallizes in the monoclinic Cm space group. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded to six Os(1,1); one Cu(1); and one Cu(2) atom to form a mixture of edge and corner-sharing OsCu2Os6 hexagonal bipyramids. All Os(1)-Os(1,1) bond lengths are 2.63 Å. The Os(1)-Cu(1) bond length is 3.02 Å. The Os(1)-Cu(2) bond length is 3.02 Å. In the second Os site, Os(1) is bonded to six Os(1,1); one Cu(1); and one Cu(2) atom to form a mixture of edge and corner-sharing OsCu2Os6 hexagonal bipyramids. Both Os(1)-Os(1) bond lengths are 2.63 Å. The Os(1)-Cu(1) bond length is 3.02 Å. The Os(1)-Cu(2) bond length is 3.02 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a single-bond geometry to one Os(1) and one B(1) atom. The Cu(1)-B(1) bond length is 0.98 Å. In the second Cu site, Cu(2) is bonded in a single-bond geometry to one Os(1) and one B(1) atom. The Cu(2)-B(1) bond length is 0.79 Å. B(1) is bonded in a linear geometry to one Cu(1) and one Cu(2) atom.