data_[Na6Ga2Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ga  1.8100  1.3000  0.7600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [5.9273]
_cell_length_b [8.1157]
_cell_length_c [7.6789]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Na3GaAg4]
_chemical_formula_sum '[Na6 Ga2 Ag8]'
_cell_volume [369.3890]
_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
[
  Na  Na0  4  0.0000  0.3062  0.5428  1.0
  Na  Na1  2  0.0000  0.0000  0.8035  1.0
  Ga  Ga2  2  0.0000  0.5000  0.1756  1.0
  Ag  Ag3  4  0.0000  0.1825  0.1491  1.0
  Ag  Ag4  4  0.2455  0.5000  0.8940  1.0
]