data_[Rb4Na8Sn2]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.5122]
_cell_length_b [7.1687]
_cell_length_c [10.8275]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.3253]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Rb2Na4Sn]
_chemical_formula_sum '[Rb4 Na8 Sn2]'
_cell_volume [640.1647]
_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  0.0862  0.2500  0.3990  1
  Rb  Rb1  2  0.1361  0.7500  0.9788  1
  Na  Na2  4  0.3802  0.0027  0.7090  1
  Na  Na3  2  0.2853  0.7500  0.3786  1
  Na  Na4  2  0.3635  0.2500  0.0137  1
  Sn  Sn5  2  0.0928  0.2500  0.7615  1
]