data_Si2AgOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.4
_cell_length_b   4.4
_cell_length_c   2.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2AgOs
_chemical_formula_sum   'Si2 Ag1 Os1'
_cell_volume   57.8
_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
  Si  Si2  1  0.2  0.0  0.49  1.0
  Si  Si3  1  0.0  0.2  0.49  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Os  Os1  1  0.2  0.2  0.0  1.0

data_Si2AgOs
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   2.98
_cell_length_b   6.22
_cell_length_c   6.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   Si2AgOs
_chemical_formula_sum   'Si4 Ag2 Os2'
_cell_volume   115.59
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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
  Si  Si0  4  0.5  0.1  0.1  1.0
  Ag  Ag1  2  0.0  0.0  0.0  1.0
  Os  Os2  2  0.0  0.0  0.2  1.0

Si Si Ag Os
Si Si Ag Os 0 1 o o o 2 3 o o o 