data_ZnAsOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.6
_cell_length_b   7.33
_cell_length_c   2.84
_cell_angle_alpha   84.28
_cell_angle_beta   73.87
_cell_angle_gamma   21.85
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnAsOs
_chemical_formula_sum   'Zn1 As1 Os1'
_cell_volume   50.75
_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  Zn2  1  0.44  0.45  0.83  1.0
  As  As0  1  0.44  0.45  0.08  1.0
  Os  Os1  1  0.44  0.45  0.85  1.0

data_ZnAsOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   2.88
_cell_length_b   14.38
_cell_length_c   2.84
_cell_angle_alpha   90.0
_cell_angle_beta   120.48
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnAsOs
_chemical_formula_sum   'Zn2 As2 Os2'
_cell_volume   101.51
_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  0.45  0.0  0.73  1.0
  As  As1  2  0.45  0.0  0.48  1.0
  Os  Os2  2  0.45  0.0  0.71  1.0

Zn As Os
Zn As Os 0 2 o o o 0 1 o o + 1 2 o o - 