data_[Li2Be2Tl2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Be  1.5700  1.0500  0.5900
  Tl  1.6200  1.9000  1.3325
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [4.8612]
_cell_length_b [5.5416]
_cell_length_c [7.5022]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.2313]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LiBeTlF4]
_chemical_formula_sum '[Li2 Be2 Tl2 F8]'
_cell_volume [195.8988]
_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
[
  Li  Li0  2  0.3520  0.7500  0.4928  1.0
  Be  Be1  2  0.1430  0.2500  0.3055  1.0
  Tl  Tl2  2  0.2586  0.2500  0.8597  1.0
  F  F3  4  0.3490  0.0246  0.3215  1.0
  F  F4  2  0.0115  0.2500  0.4738  1.0
  F  F5  2  0.0884  0.7500  0.8780  1.0
]