data_[Rb4Na4Ag4Sb4]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Ama2]
_cell_length_a [6.2618]
_cell_length_b [8.2334]
_cell_length_c [10.2482]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [40]
_chemical_formula_structural [RbNaAgSb]
_chemical_formula_sum '[Rb4 Na4 Ag4 Sb4]'
_cell_volume [528.3553]
_cell_formula_units_Z [4]
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  4  0.2500  0.3452  0.1738  1
  Na  Na1  4  0.2500  0.3450  0.8267  1
  Ag  Ag2  4  0.0000  0.0000  0.9918  1
  Sb  Sb3  4  0.2500  0.2311  0.5077  1
]