data_ZnAsOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.3
_cell_length_b   8.3
_cell_length_c   8.3
_cell_angle_alpha   20.07
_cell_angle_beta   20.07
_cell_angle_gamma   20.07
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnAsOs2
_chemical_formula_sum   'Zn1 As1 Os2'
_cell_volume   58.96
_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
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.2  1.0
  Os  Os1  1  0.0  0.0  0.96  1.0
  Os  Os2  1  0.0  0.0  0.43  1.0

data_ZnAsOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.01
_cell_length_b   2.89
_cell_length_c   8.3
_cell_angle_alpha   90.0
_cell_angle_beta   101.61
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnAsOs2
_chemical_formula_sum   'Zn2 As2 Os4'
_cell_volume   117.92
_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
  Zn  Zn0  2  0.0  0.0  0.0  1.0
  As  As1  2  0.0  0.0  0.8  1.0
  Os  Os2  2  0.0  0.0  0.04  1.0
  Os  Os3  2  0.0  0.0  0.57  1.0

Zn As Os Os
Os2ZnAs crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Os2ZnAs clusters. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a single-bond geometry to one Zn(1) atom. The Os(1)-Zn(1) bond length is 0.31 Å. In the second Os site, Os(2) is bonded in a single-bond geometry to one As(1) atom. The Os(2)-As(1) bond length is 1.95 Å. Zn(1) is bonded in a distorted single-bond geometry to one Os(1) and one As(1) atom. The Zn(1)-As(1) bond length is 1.64 Å. As(1) is bonded in a distorted single-bond geometry to one Os(2) and one Zn(1) atom.