data_[Yb8Si8O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Yb  1.1000  1.7500  1.0840
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.6939]
_cell_length_b [6.7447]
_cell_length_c [11.6138]
_cell_angle_alpha [88.4966]
_cell_angle_beta [80.7097]
_cell_angle_gamma [89.5140]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Yb2Si2O7]
_chemical_formula_sum '[Yb8 Si8 O28]'
_cell_volume [517.2815]
_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
[
  Yb  Yb0  2  0.1444  0.8400  0.6327  1
  Yb  Yb1  2  0.1847  0.3002  0.1192  1
  Yb  Yb2  2  0.1865  0.5905  0.3671  1
  Yb  Yb3  2  0.3542  0.9963  0.8849  1
  Si  Si4  2  0.1404  0.8190  0.1128  1
  Si  Si5  2  0.2914  0.3452  0.6110  1
  Si  Si6  2  0.3397  0.5122  0.8310  1
  Si  Si7  2  0.3427  0.1072  0.3872  1
  O  O8  2  0.0554  0.8249  0.9884  1
  O  O9  2  0.0705  0.0884  0.7892  1
  O  O10  2  0.0925  0.1936  0.6746  1
  O  O11  2  0.1419  0.6249  0.7956  1
  O  O12  2  0.1577  0.5195  0.5650  1
  O  O13  2  0.1930  0.2526  0.3255  1
  O  O14  2  0.1978  0.6157  0.1711  1
  O  O15  2  0.2140  0.9117  0.4388  1
  O  O16  2  0.3023  0.3313  0.9251  1
  O  O17  2  0.3161  0.9826  0.0962  1
  O  O18  2  0.4130  0.2322  0.4992  1
  O  O19  2  0.4418  0.9442  0.6910  1
  O  O20  2  0.4452  0.4068  0.7007  1
  O  O21  2  0.4787  0.6760  0.8761  1
]