data_[Rb2Na4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.7572]
_cell_length_b [4.9107]
_cell_length_c [5.9931]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.2116]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb(NaAg)2]
_chemical_formula_sum '[Rb2 Na4 Ag4]'
_cell_volume [360.5251]
_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
[
  Rb  Rb0  2  0.0000  0.0000  0.0000  1.0
  Na  Na1  4  0.1655  0.5000  0.5743  1.0
  Ag  Ag2  4  0.2368  0.5000  0.1104  1.0
]