data_[Rb10Na8]
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
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.9556]
_cell_length_b [6.4836]
_cell_length_c [13.5864]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.4649]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb5Na4]
_chemical_formula_sum '[Rb10 Na8]'
_cell_volume [1208.4724]
_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  4  0.1085  0.0000  0.3985  1.0
  Rb  Rb1  4  0.2473  0.0000  0.8304  1.0
  Rb  Rb2  2  0.0000  0.0000  0.0000  1.0
  Na  Na3  4  0.0445  0.5000  0.8297  1.0
  Na  Na4  4  0.1122  0.5000  0.6113  1.0
]