data_[Na4Ti2H8O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ti  1.5400  1.4000  0.8517
  H  2.2000  0.2500  0.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [3.0047]
_cell_length_b [4.1272]
_cell_length_c [20.6248]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Na2TiH4O5]
_chemical_formula_sum '[Na4 Ti2 H8 O10]'
_cell_volume [255.7684]
_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
[
  Na  Na0  4  0.0000  0.0000  0.4122  1
  Ti  Ti1  2  0.0000  0.0000  0.0000  1
  H  H2  8  0.0000  0.3099  0.2068  1
  O  O3  4  0.0000  0.5000  0.1787  1
  O  O4  4  0.0000  0.5000  0.4370  1
  O  O5  2  0.0000  0.5000  0.0000  1
]