The crystal structure described by (NaH2SeO4)2NiO2 crystallizes in the triclinic P-1 space group. The structure consists of one 12054-48-7 molecule inside a NaH2SeO4 framework. In the NaH2SeO4 framework, Na(1) is bonded in a 5-coordinate geometry to one H(2), one O(1), one O(5), and two equivalent O(3) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(1) and one O(4) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one Na(1) and one H(2) atom. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one H(1), and one Se(1) atom. In the second O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one Se(1) atom. In the third O site, O(4) is bonded in a distorted water-like geometry to one H(1) and one Se(1) atom. In the fourth O site, O(5) is bonded in a bent 120 degrees geometry to one Na(1) and one O(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2NiH4(SeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.744
_cell_length_b   8.029
_cell_length_c   7.477
_cell_angle_alpha   95.857
_cell_angle_beta   119.412
_cell_angle_gamma   92.597
_symmetry_Int_Tables_number   1
_cell_volume   297.002
_cell_formula_units_Z   1
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  0.752  0.325  0.372  1.0
  Na  Na1  1  0.248  0.675  0.628  1.0
  Ni  Ni2  1  0.000  0.000  0.000  1.0
  H  H3  1  0.701  0.525  0.929  1.0
  H  H4  1  0.299  0.475  0.071  1.0
  H  H5  1  0.449  0.470  0.501  1.0
  H  H6  1  0.551  0.530  0.499  1.0
  Se  Se7  1  0.571  0.729  0.191  1.0
  Se  Se8  1  0.429  0.271  0.809  1.0
  O  O9  1  0.603  0.710  0.973  1.0
  O  O10  1  0.397  0.290  0.027  1.0
  O  O11  1  0.721  0.020  0.780  1.0
  O  O12  1  0.279  0.980  0.220  1.0
  O  O13  1  0.811  0.620  0.360  1.0
  O  O14  1  0.189  0.380  0.640  1.0
  O  O15  1  0.269  0.594  0.110  1.0
  O  O16  1  0.731  0.406  0.890  1.0
  O  O17  1  0.905  0.025  0.426  1.0
  O  O18  1  0.095  0.975  0.574  1.0
[/CIF]
.
The crystal structure described by (NaH2SeO4)2NiO2 crystallizes in the triclinic P-1 space group. The structure consists of one 12054-48-7 molecule inside a NaH2SeO4 framework. In the NaH2SeO4 framework, Na(1) is bonded in a 5-coordinate geometry to one H(2), one O(1), one O(5), and two equivalent O(3) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(1) and one O(4) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one Na(1) and one H(2) atom. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one H(1), and one Se(1) atom. In the second O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one Se(1) atom. In the third O site, O(4) is bonded in a distorted water-like geometry to one H(1) and one Se(1) atom. In the fourth O site, O(5) is bonded in a bent 120 degrees geometry to one Na(1) and one O(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2NiH4(SeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.744
_cell_length_b   8.029
_cell_length_c   7.477
_cell_angle_alpha   95.857
_cell_angle_beta   119.412
_cell_angle_gamma   92.597
_symmetry_Int_Tables_number   1
_cell_volume   297.002
_cell_formula_units_Z   1
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  0.752  0.325  0.372  1.0
  Na  Na1  1  0.248  0.675  0.628  1.0
  Ni  Ni2  1  0.000  0.000  0.000  1.0
  H  H3  1  0.701  0.525  0.929  1.0
  H  H4  1  0.299  0.475  0.071  1.0
  H  H5  1  0.449  0.470  0.501  1.0
  H  H6  1  0.551  0.530  0.499  1.0
  Se  Se7  1  0.571  0.729  0.191  1.0
  Se  Se8  1  0.429  0.271  0.809  1.0
  O  O9  1  0.603  0.710  0.973  1.0
  O  O10  1  0.397  0.290  0.027  1.0
  O  O11  1  0.721  0.020  0.780  1.0
  O  O12  1  0.279  0.980  0.220  1.0
  O  O13  1  0.811  0.620  0.360  1.0
  O  O14  1  0.189  0.380  0.640  1.0
  O  O15  1  0.269  0.594  0.110  1.0
  O  O16  1  0.731  0.406  0.890  1.0
  O  O17  1  0.905  0.025  0.426  1.0
  O  O18  1  0.095  0.975  0.574  1.0
[/CIF]
.