The compound described by Sr(H2O3)2 crystallizes in the monoclinic Cc space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), one O(5), one O(6), two equivalent O(1), 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 single-bond geometry to one O(1) and one O(6) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(2) and one O(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(1) and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to two equivalent Sr(1), one H(1), and one H(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one H(3), and one O(4) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent Sr(1), one H(2), and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent Sr(1) and one O(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one H(4), and one O(6) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sr(1), one H(1), and one O(5) atom. is represented by the CIF card [CIF]
data_Sr(H2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.174
_cell_length_b   5.174
_cell_length_c   9.275
_cell_angle_alpha   78.429
_cell_angle_beta   78.429
_cell_angle_gamma   69.797
_symmetry_Int_Tables_number   1
_cell_volume   225.942
_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
  Sr  Sr0  1  0.895  0.177  0.719  1.0
  Sr  Sr1  1  0.177  0.895  0.219  1.0
  H  H2  1  0.142  0.340  0.943  1.0
  H  H3  1  0.441  0.878  0.854  1.0
  H  H4  1  0.549  0.884  0.686  1.0
  H  H5  1  0.884  0.549  0.186  1.0
  H  H6  1  0.340  0.142  0.443  1.0
  H  H7  1  0.878  0.441  0.354  1.0
  H  H8  1  0.371  0.821  0.501  1.0
  H  H9  1  0.821  0.371  0.001  1.0
  O  O10  1  0.008  0.234  0.980  1.0
  O  O11  1  0.864  0.681  0.604  1.0
  O  O12  1  0.681  0.864  0.104  1.0
  O  O13  1  0.234  0.008  0.480  1.0
  O  O14  1  0.429  0.002  0.760  1.0
  O  O15  1  0.003  0.643  0.719  1.0
  O  O16  1  0.643  0.003  0.219  1.0
  O  O17  1  0.002  0.429  0.260  1.0
  O  O18  1  0.555  0.477  0.504  1.0
  O  O19  1  0.440  0.422  0.903  1.0
  O  O20  1  0.422  0.440  0.403  1.0
  O  O21  1  0.477  0.555  0.004  1.0
[/CIF]
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The compound described by Sr(H2O3)2 crystallizes in the monoclinic Cc space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), one O(5), one O(6), two equivalent O(1), 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 single-bond geometry to one O(1) and one O(6) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(2) and one O(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(1) and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to two equivalent Sr(1), one H(1), and one H(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one H(3), and one O(4) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent Sr(1), one H(2), and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent Sr(1) and one O(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one H(4), and one O(6) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sr(1), one H(1), and one O(5) atom. is represented by the CIF card [CIF]
data_Sr(H2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.174
_cell_length_b   5.174
_cell_length_c   9.275
_cell_angle_alpha   78.429
_cell_angle_beta   78.429
_cell_angle_gamma   69.797
_symmetry_Int_Tables_number   1
_cell_volume   225.942
_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
  Sr  Sr0  1  0.895  0.177  0.719  1.0
  Sr  Sr1  1  0.177  0.895  0.219  1.0
  H  H2  1  0.142  0.340  0.943  1.0
  H  H3  1  0.441  0.878  0.854  1.0
  H  H4  1  0.549  0.884  0.686  1.0
  H  H5  1  0.884  0.549  0.186  1.0
  H  H6  1  0.340  0.142  0.443  1.0
  H  H7  1  0.878  0.441  0.354  1.0
  H  H8  1  0.371  0.821  0.501  1.0
  H  H9  1  0.821  0.371  0.001  1.0
  O  O10  1  0.008  0.234  0.980  1.0
  O  O11  1  0.864  0.681  0.604  1.0
  O  O12  1  0.681  0.864  0.104  1.0
  O  O13  1  0.234  0.008  0.480  1.0
  O  O14  1  0.429  0.002  0.760  1.0
  O  O15  1  0.003  0.643  0.719  1.0
  O  O16  1  0.643  0.003  0.219  1.0
  O  O17  1  0.002  0.429  0.260  1.0
  O  O18  1  0.555  0.477  0.504  1.0
  O  O19  1  0.440  0.422  0.903  1.0
  O  O20  1  0.422  0.440  0.403  1.0
  O  O21  1  0.477  0.555  0.004  1.0
[/CIF]
.