The structure described by Ba(H2O3)2 crystallizes in the monoclinic Cc space group. Ba(1) is bonded in a 10-coordinate geometry to one O(5), one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(5) atom. In the second H site, H(2) is bonded in a linear geometry to one O(2) and one O(6) atom. In the third H site, H(3) is bonded in a linear geometry to one O(3) and one O(5) atom. In the fourth H site, H(4) is bonded in a linear geometry to one O(4) and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(3) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(4) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ba(1), one H(1), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Ba(1), one H(2), and one H(4) atom. is represented by the CIF file [CIF]
data_Ba(H2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.294
_cell_length_b   5.294
_cell_length_c   8.547
_cell_angle_alpha   84.212
_cell_angle_beta   84.212
_cell_angle_gamma   73.844
_symmetry_Int_Tables_number   1
_cell_volume   228.256
_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
  Ba  Ba0  1  0.203  0.807  0.769  1.0
  Ba  Ba1  1  0.807  0.203  0.269  1.0
  H  H2  1  0.728  0.683  0.567  1.0
  H  H3  1  0.318  0.282  0.969  1.0
  H  H4  1  0.282  0.318  0.469  1.0
  H  H5  1  0.683  0.728  0.067  1.0
  H  H6  1  0.633  0.196  0.642  1.0
  H  H7  1  0.196  0.633  0.142  1.0
  H  H8  1  0.802  0.376  0.893  1.0
  H  H9  1  0.376  0.802  0.393  1.0
  O  O10  1  0.814  0.842  0.563  1.0
  O  O11  1  0.153  0.199  0.976  1.0
  O  O12  1  0.199  0.153  0.476  1.0
  O  O13  1  0.842  0.814  0.063  1.0
  O  O14  1  0.662  0.997  0.694  1.0
  O  O15  1  1.000  0.351  0.844  1.0
  O  O16  1  0.351  1.000  0.344  1.0
  O  O17  1  0.997  0.662  0.194  1.0
  O  O18  1  0.604  0.462  0.576  1.0
  O  O19  1  0.529  0.404  0.955  1.0
  O  O20  1  0.404  0.529  0.455  1.0
  O  O21  1  0.462  0.604  0.076  1.0
[/CIF]
.
The structure described by Ba(H2O3)2 crystallizes in the monoclinic Cc space group. Ba(1) is bonded in a 10-coordinate geometry to one O(5), one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(5) atom. In the second H site, H(2) is bonded in a linear geometry to one O(2) and one O(6) atom. In the third H site, H(3) is bonded in a linear geometry to one O(3) and one O(5) atom. In the fourth H site, H(4) is bonded in a linear geometry to one O(4) and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(3) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to two equivalent Ba(1) and one H(4) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ba(1), one H(1), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Ba(1), one H(2), and one H(4) atom. is represented by the CIF file [CIF]
data_Ba(H2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.294
_cell_length_b   5.294
_cell_length_c   8.547
_cell_angle_alpha   84.212
_cell_angle_beta   84.212
_cell_angle_gamma   73.844
_symmetry_Int_Tables_number   1
_cell_volume   228.256
_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
  Ba  Ba0  1  0.203  0.807  0.769  1.0
  Ba  Ba1  1  0.807  0.203  0.269  1.0
  H  H2  1  0.728  0.683  0.567  1.0
  H  H3  1  0.318  0.282  0.969  1.0
  H  H4  1  0.282  0.318  0.469  1.0
  H  H5  1  0.683  0.728  0.067  1.0
  H  H6  1  0.633  0.196  0.642  1.0
  H  H7  1  0.196  0.633  0.142  1.0
  H  H8  1  0.802  0.376  0.893  1.0
  H  H9  1  0.376  0.802  0.393  1.0
  O  O10  1  0.814  0.842  0.563  1.0
  O  O11  1  0.153  0.199  0.976  1.0
  O  O12  1  0.199  0.153  0.476  1.0
  O  O13  1  0.842  0.814  0.063  1.0
  O  O14  1  0.662  0.997  0.694  1.0
  O  O15  1  1.000  0.351  0.844  1.0
  O  O16  1  0.351  1.000  0.344  1.0
  O  O17  1  0.997  0.662  0.194  1.0
  O  O18  1  0.604  0.462  0.576  1.0
  O  O19  1  0.529  0.404  0.955  1.0
  O  O20  1  0.404  0.529  0.455  1.0
  O  O21  1  0.462  0.604  0.076  1.0
[/CIF]
.