[CIF]
data_Na2Si(H5O4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.67577800
_cell_length_b   7.96112903
_cell_length_c   8.58709015
_cell_angle_alpha   108.88079945
_cell_angle_beta   98.58251938
_cell_angle_gamma   104.30565942
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2Si(H5O4)2
_chemical_formula_sum   'Na4 Si2 H20 O16'
_cell_volume   405.14522413
_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  1  -0.74202643  0.82078365  6.68268641  1
  Na  Na1  1  4.16916843  3.69899135  1.18440659  1
  Na  Na2  1  2.74443145  0.32684140  5.21005314  1
  Na  Na3  1  0.68271055  4.19293360  2.65703986  1
  Si  Si4  1  5.42697705  -2.18794385  6.02956035  1
  Si  Si5  1  -1.99983505  6.70771885  1.83753265  1
  H  H6  1  2.20715453  4.11512405  7.37029394  1
  H  H7  1  1.21998747  0.40465095  0.49679906  1
  H  H8  1  5.21098904  -0.67560885  4.27682710  1
  H  H9  1  -1.78384704  5.19538385  3.59026590  1
  H  H10  1  0.11398461  0.78552696  4.02533187  1
  H  H11  1  3.31315739  3.73424804  3.84176113  1
  H  H12  1  0.47342915  2.15740970  4.78253171  1
  H  H13  1  2.95371285  2.36236530  3.08456129  1
  H  H14  1  -0.76275961  4.12676972  5.13349846  1
  H  H15  1  4.18990161  0.39300528  2.73359454  1
  H  H16  1  0.80120389  4.21834129  5.59842792  1
  H  H17  1  2.62593811  0.30143371  2.26866508  1
  H  H18  1  1.21212508  -1.18061423  7.23809531  1
  H  H19  1  2.21501692  5.70038923  0.62899769  1
  H  H20  1  2.75649507  -1.62023458  7.16098207  1
  H  H21  1  0.67064693  6.14000958  0.70611093  1
  H  H22  1  3.41691369  2.36974916  7.13849792  1
  H  H23  1  0.01022831  2.15002584  0.72859508  1
  H  H24  1  4.10784175  2.88635463  5.82314357  1
  H  H25  1  -0.68069975  1.63342037  2.04394943  1
  O  O26  1  -0.38319030  -1.58727578  7.27967290  1
  O  O27  1  3.81033230  6.10705078  0.58742010  1
  O  O28  1  -2.41588795  4.49789443  5.05724273  1
  O  O29  1  5.84302995  0.02188057  2.80985027  1
  O  O30  1  2.05083368  4.82809591  6.65880979  1
  O  O31  1  1.37630832  -0.30832091  1.20828321  1
  O  O32  1  4.79235883  -0.90639468  5.15960148  1
  O  O33  1  -1.36521683  5.42616968  2.70749152  1
  O  O34  1  0.59401508  1.16598907  4.81959358  1
  O  O35  1  2.83312692  3.35378593  3.04749942  1
  O  O36  1  0.17628901  3.83566389  4.92710528  1
  O  O37  1  3.25085299  0.68411111  2.93998772  1
  O  O38  1  2.16319885  -0.83210302  7.23937765  1
  O  O39  1  1.26394315  5.35187802  0.62771535  1
  O  O40  1  3.93699693  2.04653963  6.33728956  1
  O  O41  1  -0.50985493  2.47323537  1.52980344  1
[/CIF]
