data_[Rb2Ba2Na2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Na  0.9300  1.8000  1.1600
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [4.5187]
_cell_length_b [4.5187]
_cell_length_c [18.5614]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [RbBaNa]
_chemical_formula_sum '[Rb2 Ba2 Na2]'
_cell_volume [378.9902]
_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  1  0.0000  0.0000  0.7493  1.0
  Rb  Rb1  1  0.5000  0.5000  0.9721  1.0
  Ba  Ba2  1  0.0000  0.0000  0.1753  1.0
  Ba  Ba3  1  0.5000  0.5000  0.3566  1.0
  Na  Na4  1  0.0000  0.0000  0.4964  1.0
  Na  Na5  1  0.5000  0.5000  0.5873  1.0
]