data_[Al2Ga2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Ga  1.8100  1.3000  0.7600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [5.3172]
_cell_length_b [2.9199]
_cell_length_c [9.1009]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.4342]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [AlGaAg2]
_chemical_formula_sum '[Al2 Ga2 Ag4]'
_cell_volume [138.9590]
_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
[
  Al  Al0  2  0.0020  0.5000  0.5001  1
  Ga  Ga1  2  0.3322  0.0000  1.0000  1
  Ag  Ag2  2  0.2604  0.5000  0.2580  1
  Ag  Ag3  2  0.4053  0.5000  0.7420  1
]