data_[Cs2Na2Be2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.2029]
_cell_length_b [5.8306]
_cell_length_c [7.7360]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.7745]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [CsNaBeF4]
_chemical_formula_sum '[Cs2 Na2 Be2 F8]'
_cell_volume [229.7436]
_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
[
  Cs  Cs0  2  0.2601  0.2500  0.8892  1.0
  Na  Na1  2  0.3219  0.7500  0.5139  1.0
  Be  Be2  2  0.1575  0.2500  0.3165  1.0
  F  F3  4  0.3282  0.0318  0.2938  1.0
  F  F4  2  0.1094  0.7500  0.8180  1.0
  F  F5  2  0.1156  0.2500  0.5096  1.0
]