The material structure described by CrH8SO8H2O crystallizes in the triclinic P-1 space group. The structure consists of two water molecules inside a CrH8SO8 framework. In the CrH8SO8 framework, there are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent O(1), two equivalent O(5), and two equivalent O(6) atoms to form CrO6 octahedra that share corners with two equivalent S(1)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to two equivalent O(2), two equivalent O(7), and two equivalent O(8) atoms to form CrO6 octahedra that share corners with two equivalent S(1)O4 tetrahedra. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(3) and one O(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(7) atom. In the seventh H site, H(7) is bonded in a distorted single-bond geometry to one O(3) and one O(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(8) atom. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-47°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cr(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cr(2) and one S(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one H(5), one H(7), and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one S(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one H(1), and one H(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one H(3), and one H(4) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Cr(2), one H(5), and one H(6) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Cr(2), one H(7), and one H(8) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrH10SO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.088
_cell_length_b   6.277
_cell_length_c   11.068
_cell_angle_alpha   77.079
_cell_angle_beta   82.177
_cell_angle_gamma   71.369
_symmetry_Int_Tables_number   1
_cell_volume   389.664
_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
  Cr  Cr0  1  0.000  0.000  0.000  1.0
  Cr  Cr1  1  0.000  0.500  0.500  1.0
  H  H2  1  0.256  0.108  0.146  1.0
  H  H3  1  0.744  0.892  0.854  1.0
  H  H4  1  0.234  0.284  0.016  1.0
  H  H5  1  0.766  0.716  0.984  1.0
  H  H6  1  0.076  0.684  0.201  1.0
  H  H7  1  0.924  0.316  0.799  1.0
  H  H8  1  0.331  0.652  0.128  1.0
  H  H9  1  0.669  0.348  0.872  1.0
  H  H10  1  0.441  0.400  0.389  1.0
  H  H11  1  0.559  0.600  0.611  1.0
  H  H12  1  0.349  0.680  0.372  1.0
  H  H13  1  0.651  0.320  0.628  1.0
  H  H14  1  0.889  0.187  0.396  1.0
  H  H15  1  0.111  0.813  0.604  1.0
  H  H16  1  0.168  0.132  0.383  1.0
  H  H17  1  0.832  0.868  0.617  1.0
  H  H18  1  0.681  0.400  0.131  1.0
  H  H19  1  0.319  0.600  0.869  1.0
  H  H20  1  0.687  0.597  0.196  1.0
  H  H21  1  0.313  0.403  0.804  1.0
  S  S22  1  0.629  0.989  0.286  1.0
  S  S23  1  0.371  0.011  0.714  1.0
  O  O24  1  0.676  0.100  0.155  1.0
  O  O25  1  0.324  0.900  0.845  1.0
  O  O26  1  0.800  0.755  0.313  1.0
  O  O27  1  0.200  0.245  0.687  1.0
  O  O28  1  0.643  0.133  0.373  1.0
  O  O29  1  0.357  0.867  0.627  1.0
  O  O30  1  0.388  0.963  0.300  1.0
  O  O31  1  0.612  0.037  0.700  1.0
  O  O32  1  0.154  0.187  0.077  1.0
  O  O33  1  0.846  0.813  0.923  1.0
  O  O34  1  0.160  0.698  0.119  1.0
  O  O35  1  0.840  0.302  0.881  1.0
  O  O36  1  0.307  0.536  0.401  1.0
  O  O37  1  0.693  0.464  0.599  1.0
  O  O38  1  0.021  0.237  0.412  1.0
  O  O39  1  0.979  0.763  0.588  1.0
  O  O40  1  0.631  0.569  0.124  1.0
  O  O41  1  0.369  0.431  0.876  1.0
[/CIF]
.
The material structure described by CrH8SO8H2O crystallizes in the triclinic P-1 space group. The structure consists of two water molecules inside a CrH8SO8 framework. In the CrH8SO8 framework, there are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent O(1), two equivalent O(5), and two equivalent O(6) atoms to form CrO6 octahedra that share corners with two equivalent S(1)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to two equivalent O(2), two equivalent O(7), and two equivalent O(8) atoms to form CrO6 octahedra that share corners with two equivalent S(1)O4 tetrahedra. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(3) and one O(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(7) atom. In the seventh H site, H(7) is bonded in a distorted single-bond geometry to one O(3) and one O(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(8) atom. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra and  a cornercorner with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-47°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Cr(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Cr(2) and one S(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one H(5), one H(7), and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one S(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one H(1), and one H(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one H(3), and one H(4) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Cr(2), one H(5), and one H(6) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Cr(2), one H(7), and one H(8) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrH10SO9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.088
_cell_length_b   6.277
_cell_length_c   11.068
_cell_angle_alpha   77.079
_cell_angle_beta   82.177
_cell_angle_gamma   71.369
_symmetry_Int_Tables_number   1
_cell_volume   389.664
_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
  Cr  Cr0  1  0.000  0.000  0.000  1.0
  Cr  Cr1  1  0.000  0.500  0.500  1.0
  H  H2  1  0.256  0.108  0.146  1.0
  H  H3  1  0.744  0.892  0.854  1.0
  H  H4  1  0.234  0.284  0.016  1.0
  H  H5  1  0.766  0.716  0.984  1.0
  H  H6  1  0.076  0.684  0.201  1.0
  H  H7  1  0.924  0.316  0.799  1.0
  H  H8  1  0.331  0.652  0.128  1.0
  H  H9  1  0.669  0.348  0.872  1.0
  H  H10  1  0.441  0.400  0.389  1.0
  H  H11  1  0.559  0.600  0.611  1.0
  H  H12  1  0.349  0.680  0.372  1.0
  H  H13  1  0.651  0.320  0.628  1.0
  H  H14  1  0.889  0.187  0.396  1.0
  H  H15  1  0.111  0.813  0.604  1.0
  H  H16  1  0.168  0.132  0.383  1.0
  H  H17  1  0.832  0.868  0.617  1.0
  H  H18  1  0.681  0.400  0.131  1.0
  H  H19  1  0.319  0.600  0.869  1.0
  H  H20  1  0.687  0.597  0.196  1.0
  H  H21  1  0.313  0.403  0.804  1.0
  S  S22  1  0.629  0.989  0.286  1.0
  S  S23  1  0.371  0.011  0.714  1.0
  O  O24  1  0.676  0.100  0.155  1.0
  O  O25  1  0.324  0.900  0.845  1.0
  O  O26  1  0.800  0.755  0.313  1.0
  O  O27  1  0.200  0.245  0.687  1.0
  O  O28  1  0.643  0.133  0.373  1.0
  O  O29  1  0.357  0.867  0.627  1.0
  O  O30  1  0.388  0.963  0.300  1.0
  O  O31  1  0.612  0.037  0.700  1.0
  O  O32  1  0.154  0.187  0.077  1.0
  O  O33  1  0.846  0.813  0.923  1.0
  O  O34  1  0.160  0.698  0.119  1.0
  O  O35  1  0.840  0.302  0.881  1.0
  O  O36  1  0.307  0.536  0.401  1.0
  O  O37  1  0.693  0.464  0.599  1.0
  O  O38  1  0.021  0.237  0.412  1.0
  O  O39  1  0.979  0.763  0.588  1.0
  O  O40  1  0.631  0.569  0.124  1.0
  O  O41  1  0.369  0.431  0.876  1.0
[/CIF]
.