data_Si4Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.28
_cell_length_b   5.28
_cell_length_c   6.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si4Ag
_chemical_formula_sum   'Si8 Ag2'
_cell_volume   167.34
_cell_formula_units_Z   2
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  0.0  0.41  0.23  1.0
  Si  Si3  1  0.0  0.87  0.23  1.0
  Si  Si4  1  0.41  0.0  0.77  1.0
  Si  Si5  1  0.87  0.0  0.77  1.0
  Si  Si6  1  0.64  0.05  0.77  1.0
  Si  Si7  1  0.64  0.23  0.77  1.0
  Si  Si8  1  0.23  0.64  0.23  1.0
  Si  Si9  1  0.05  0.64  0.23  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.64  0.64  0.0  1.0

data_Si4Ag
_symmetry_space_group_name_H-M   C2
_cell_length_a   7.47
_cell_length_b   7.47
_cell_length_c   6.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   5
_chemical_formula_structural   Si4Ag
_chemical_formula_sum   'Si16 Ag4'
_cell_volume   334.67
_cell_formula_units_Z   4
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
  Si  Si0  4  0.06  0.94  0.23  1.0
  Si  Si1  4  0.2  0.2  0.77  1.0
  Si  Si2  4  0.2  0.44  0.77  1.0
  Si  Si3  4  0.2  0.84  0.23  1.0
  Ag  Ag4  2  0.0  0.0  0.0  1.0
  Ag  Ag5  2  0.0  0.64  0.0  1.0

Si Si Si Si Si Si Si Si Ag Ag
Si Si Si Si Si Si Si Si Ag Ag 0 7 o o o 0 9 - o o 1 7 o o o 1 8 o + o 1 9 - o o 2 4 o o o 2 9 o - + 3 4 o o o 3 8 + o + 3 9 o - + 4 5 o o o 4 9 o - + 5 9 o o + 6 7 o o o 6 9 o o o 7 9 - o o 8 9 - - o 