data_[La4Y8Be4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Y  1.2200  1.8000  1.0400
  Be  1.5700  1.0500  0.5900
]
_symmetry_space_group_name_H-M [Fm-3m]
_cell_length_a [7.5083]
_cell_length_b [7.5083]
_cell_length_c [7.5083]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [225]
_chemical_formula_structural [LaY2Be]
_chemical_formula_sum '[La4 Y8 Be4]'
_cell_volume [423.2794]
_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
[
  La  La0  4  0.0000  0.0000  0.5000  1
  Y  Y1  8  0.2500  0.2500  0.2500  1
  Be  Be2  4  0.0000  0.0000  0.0000  1
]