data_[Y2Si2H2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Si  1.9000  1.1000  0.5400
  H  2.2000  0.2500  0.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [4.4768]
_cell_length_b [6.6431]
_cell_length_c [4.8597]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.9879]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [YSiHO4]
_chemical_formula_sum '[Y2 Si2 H2 O8]'
_cell_volume [143.4558]
_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
[
  Y  Y0  2  0.4298  0.2500  0.8013  1
  Si  Si1  2  0.0673  0.7500  0.6906  1
  H  H2  2  0.0000  0.0000  0.0000  1
  O  O3  4  0.2115  0.5570  0.8832  1
  O  O4  2  0.1335  0.7500  0.3741  1
  O  O5  2  0.2959  0.2500  0.3115  1
]