data_[La8Si4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [5.6269]
_cell_length_b [7.2808]
_cell_length_c [10.7900]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.8391]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [La2SiO4]
_chemical_formula_sum '[La8 Si4 O16]'
_cell_volume [394.4289]
_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  0.2107  0.1664  0.9313  1
  La  La1  4  0.4936  0.5033  0.8017  1
  Si  Si2  4  0.1467  0.7243  0.9092  1
  O  O3  4  0.1804  0.2489  0.6785  1
  O  O4  4  0.2083  0.5039  0.9371  1
  O  O5  4  0.2522  0.6725  0.5639  1
  O  O6  4  0.3090  0.6609  0.3379  1
]