data_[Na4Be4Ag4F20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.6921]
_cell_length_b [9.0637]
_cell_length_c [7.1030]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.1401]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaBeAgF5]
_chemical_formula_sum '[Na4 Be4 Ag4 F20]'
_cell_volume [421.2038]
_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
[
  Na  Na0  4  0.0000  0.3827  0.2500  1.0
  Be  Be1  4  0.0000  0.2943  0.7500  1.0
  Ag  Ag2  4  0.0000  0.0000  0.0000  1.0
  F  F3  8  0.1155  0.3910  0.9146  1.0
  F  F4  8  0.1491  0.1820  0.6691  1.0
  F  F5  4  0.0000  0.1245  0.2500  1.0
]