data_[Rb2Ba2Si2H2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  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]
_cell_length_a [5.9801]
_cell_length_b [8.2478]
_cell_length_c [6.0528]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.0947]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [4]
_chemical_formula_structural [RbBaSiHO4]
_chemical_formula_sum '[Rb2 Ba2 Si2 H2 O8]'
_cell_volume [263.3609]
_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
[
  Rb  Rb0  2  0.3648  0.7694  0.7100  1.0
  Ba  Ba1  2  0.0157  0.5177  0.0096  1.0
  Si  Si2  2  0.3054  0.2544  0.6204  1.0
  H  H3  2  0.4856  0.4884  0.5409  1.0
  O  O4  2  0.1149  0.2618  0.3173  1.0
  O  O5  2  0.1575  0.2616  0.7887  1.0
  O  O6  2  0.4922  0.4276  0.6895  1.0
  O  O7  2  0.4932  0.6021  0.3079  1.0
]