data_[Yb4Be4Si2O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Yb  1.1000  1.7500  1.0840
  Be  1.5700  1.0500  0.5900
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-42_1m]
_cell_length_a [7.3363]
_cell_length_b [7.3363]
_cell_length_c [4.8246]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [113]
_chemical_formula_structural [Yb2Be2SiO7]
_chemical_formula_sum '[Yb4 Be4 Si2 O14]'
_cell_volume [259.6608]
_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
[
  Yb  Yb0  4  0.1595  0.6595  0.4940  1
  Be  Be1  4  0.1381  0.3619  0.9549  1
  Si  Si2  2  0.0000  0.0000  0.0000  1
  O  O3  8  0.0821  0.1631  0.8025  1
  O  O4  4  0.1405  0.3595  0.2874  1
  O  O5  2  0.0000  0.5000  0.8204  1
]