data_[Be2Tl4W2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Tl  1.6200  1.9000  1.3325
  W  2.3600  1.3500  0.7667
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.8702]
_cell_length_b [3.9590]
_cell_length_c [10.4101]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [BeTl2W]
_chemical_formula_sum '[Be2 Tl4 W2]'
_cell_volume [159.5064]
_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
[
  Be  Be0  2  0.5000  0.0000  0.5618  1
  Tl  Tl1  2  0.0000  0.0000  0.9784  1
  Tl  Tl2  2  0.5000  0.0000  0.2657  1
  W  W3  2  0.0000  0.0000  0.6951  1
]