The material structure described by NaH2(SO2)2 crystallizes in the monoclinic C2 space group. Na(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted face-sharing NaO6 octahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a water-like geometry to one S(1) and one S(2) atom. In the second S site, S(2) is bonded in a trigonal non-coplanar geometry to one S(1), one O(1), one O(2), and one O(3) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one S(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one S(2) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to two equivalent Na(1), one H(1), and one H(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaH2(SO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.211
_cell_length_b   8.211
_cell_length_c   5.472
_cell_angle_alpha   75.788
_cell_angle_beta   75.788
_cell_angle_gamma   46.544
_symmetry_Int_Tables_number   1
_cell_volume   258.093
_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  0.689  0.850  0.982  1.0
  Na  Na1  1  0.150  0.311  0.018  1.0
  H  H2  1  0.663  0.520  0.241  1.0
  H  H3  1  0.480  0.337  0.759  1.0
  H  H4  1  0.684  0.523  0.946  1.0
  H  H5  1  0.477  0.316  0.054  1.0
  S  S6  1  0.025  0.023  0.654  1.0
  S  S7  1  0.977  0.975  0.346  1.0
  S  S8  1  0.365  0.903  0.582  1.0
  S  S9  1  0.097  0.635  0.418  1.0
  O  O10  1  0.528  0.655  0.614  1.0
  O  O11  1  0.345  0.472  0.386  1.0
  O  O12  1  0.359  1.000  0.781  1.0
  O  O13  1  0.001  0.641  0.219  1.0
  O  O14  1  0.383  1.000  0.324  1.0
  O  O15  1  0.000  0.617  0.676  1.0
  O  O16  1  0.759  0.500  0.083  1.0
  O  O17  1  0.500  0.241  0.917  1.0
[/CIF]
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The material structure described by NaH2(SO2)2 crystallizes in the monoclinic C2 space group. Na(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted face-sharing NaO6 octahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a water-like geometry to one S(1) and one S(2) atom. In the second S site, S(2) is bonded in a trigonal non-coplanar geometry to one S(1), one O(1), one O(2), and one O(3) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one S(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Na(1) and one S(2) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to two equivalent Na(1), one H(1), and one H(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaH2(SO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.211
_cell_length_b   8.211
_cell_length_c   5.472
_cell_angle_alpha   75.788
_cell_angle_beta   75.788
_cell_angle_gamma   46.544
_symmetry_Int_Tables_number   1
_cell_volume   258.093
_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  0.689  0.850  0.982  1.0
  Na  Na1  1  0.150  0.311  0.018  1.0
  H  H2  1  0.663  0.520  0.241  1.0
  H  H3  1  0.480  0.337  0.759  1.0
  H  H4  1  0.684  0.523  0.946  1.0
  H  H5  1  0.477  0.316  0.054  1.0
  S  S6  1  0.025  0.023  0.654  1.0
  S  S7  1  0.977  0.975  0.346  1.0
  S  S8  1  0.365  0.903  0.582  1.0
  S  S9  1  0.097  0.635  0.418  1.0
  O  O10  1  0.528  0.655  0.614  1.0
  O  O11  1  0.345  0.472  0.386  1.0
  O  O12  1  0.359  1.000  0.781  1.0
  O  O13  1  0.001  0.641  0.219  1.0
  O  O14  1  0.383  1.000  0.324  1.0
  O  O15  1  0.000  0.617  0.676  1.0
  O  O16  1  0.759  0.500  0.083  1.0
  O  O17  1  0.500  0.241  0.917  1.0
[/CIF]
.