data_SrAl2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.48
_cell_length_b   3.48
_cell_length_c   7.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrAl2Ag
_chemical_formula_sum   'Sr1 Al2 Ag1'
_cell_volume   90.84
_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
  Sr  Sr3  1  0.0  0.0  0.76  1.0
  Al  Al1  1  0.0  0.0  0.45  1.0
  Al  Al2  1  0.74  0.74  0.43  1.0
  Ag  Ag0  1  0.74  0.74  0.13  1.0

data_SrAl2Ag
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.92
_cell_length_b   4.92
_cell_length_c   7.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrAl2Ag
_chemical_formula_sum   'Sr2 Al4 Ag2'
_cell_volume   181.67
_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
  Sr  Sr0  2  0.0  0.0  0.76  1.0
  Al  Al1  2  0.0  0.0  0.45  1.0
  Al  Al2  2  0.24  0.5  0.43  1.0
  Ag  Ag3  2  0.24  0.5  0.13  1.0

Sr Al Al Ag
Sr Al Al Ag 0 2 - - o 0 1 o o o 1 2 - - o 1 3 - - o 2 3 o o o 