The crystal structure described by CrH6SO7 crystallizes in the triclinic P1 space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(10), one O(12), one O(14), one O(3), one O(6), and one O(8) atom to form CrO6 octahedra that share  a cornercorner with one S(1)O4 tetrahedra and corners with two equivalent S(2)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to one O(11), one O(13), one O(4), one O(5), one O(7), and one O(9) atom to form CrO6 octahedra that share  a cornercorner with one S(2)O4 tetrahedra and corners with two equivalent S(1)O4 tetrahedra. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(10) and one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) and one O(9) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(9) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) and one O(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(11) and one O(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(11) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(1) and one O(14) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(13) and one O(2) atom. In the eleventh H site, H(11) is bonded in a distorted single-bond geometry to one O(14) and one O(2) atom. In the twelfth H site, H(12) is bonded in a distorted single-bond geometry to one O(1) and one O(13) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(1), one O(3), one O(5), and one O(7) atom to form SO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra and corners with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-50°. In the second S site, S(2) is bonded to one O(2), one O(4), one O(6), and one O(8) atom to form SO4 tetrahedra that share  a cornercorner with one Cr(2)O6 octahedra and corners with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-50°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one H(12), one H(9), and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one H(10), one H(11), and one S(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Cr(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(2) and one S(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cr(2), one H(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Cr(1), one H(2), and one S(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Cr(2), one H(5), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Cr(1), one H(6), and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Cr(2), one H(2), and one H(4) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Cr(1), one H(1), and one H(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one H(6), and one H(8) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one H(5), and one H(7) atom. In the thirteenth O site, O(13) is bonded in a distorted water-like geometry to one Cr(2), one H(10), and one H(12) atom. In the fourteenth O site, O(14) is bonded in a distorted water-like geometry to one Cr(1), one H(11), and one H(9) atom. is represented by the CIF file [CIF]
data_CrH6SO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.787
_cell_length_b   7.541
_cell_length_c   7.298
_cell_angle_alpha   88.091
_cell_angle_beta   66.659
_cell_angle_gamma   85.166
_symmetry_Int_Tables_number   1
_cell_volume   291.397
_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  0.868  0.008  0.269  1.0
  Cr  Cr1  1  0.137  0.507  0.731  1.0
  H  H2  1  0.968  0.649  0.208  1.0
  H  H3  1  0.176  0.148  0.792  1.0
  H  H4  1  0.032  0.708  0.391  1.0
  H  H5  1  0.423  0.207  0.609  1.0
  H  H6  1  0.496  0.782  0.381  1.0
  H  H7  1  0.876  0.281  0.619  1.0
  H  H8  1  0.392  0.972  0.327  1.0
  H  H9  1  0.718  0.472  0.673  1.0
  H  H10  1  0.297  0.207  0.162  1.0
  H  H11  1  0.458  0.707  0.838  1.0
  H  H12  1  0.367  0.018  0.053  1.0
  H  H13  1  0.420  0.518  0.947  1.0
  S  S14  1  0.618  0.427  0.231  1.0
  S  S15  1  0.849  0.926  0.769  1.0
  O  O16  1  0.466  0.388  0.115  1.0
  O  O17  1  0.581  0.887  0.885  1.0
  O  O18  1  0.669  0.257  0.327  1.0
  O  O19  1  0.996  0.756  0.673  1.0
  O  O20  1  0.860  0.499  0.096  1.0
  O  O21  1  0.955  0.998  0.904  1.0
  O  O22  1  0.474  0.555  0.394  1.0
  O  O23  1  0.868  0.055  0.606  1.0
  O  O24  1  0.290  0.246  0.737  1.0
  O  O25  1  0.027  0.747  0.263  1.0
  O  O26  1  0.891  0.412  0.620  1.0
  O  O27  1  0.511  0.913  0.380  1.0
  O  O28  1  0.415  0.583  0.826  1.0
  O  O29  1  0.241  0.084  0.174  1.0
[/CIF]
.
The crystal structure described by CrH6SO7 crystallizes in the triclinic P1 space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(10), one O(12), one O(14), one O(3), one O(6), and one O(8) atom to form CrO6 octahedra that share  a cornercorner with one S(1)O4 tetrahedra and corners with two equivalent S(2)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to one O(11), one O(13), one O(4), one O(5), one O(7), and one O(9) atom to form CrO6 octahedra that share  a cornercorner with one S(2)O4 tetrahedra and corners with two equivalent S(1)O4 tetrahedra. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(10) and one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) and one O(9) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(9) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) and one O(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(11) and one O(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(11) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(1) and one O(14) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(13) and one O(2) atom. In the eleventh H site, H(11) is bonded in a distorted single-bond geometry to one O(14) and one O(2) atom. In the twelfth H site, H(12) is bonded in a distorted single-bond geometry to one O(1) and one O(13) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(1), one O(3), one O(5), and one O(7) atom to form SO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra and corners with two equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-50°. In the second S site, S(2) is bonded to one O(2), one O(4), one O(6), and one O(8) atom to form SO4 tetrahedra that share  a cornercorner with one Cr(2)O6 octahedra and corners with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-50°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one H(12), one H(9), and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one H(10), one H(11), and one S(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Cr(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(2) and one S(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cr(2), one H(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Cr(1), one H(2), and one S(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Cr(2), one H(5), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Cr(1), one H(6), and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Cr(2), one H(2), and one H(4) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Cr(1), one H(1), and one H(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one H(6), and one H(8) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one H(5), and one H(7) atom. In the thirteenth O site, O(13) is bonded in a distorted water-like geometry to one Cr(2), one H(10), and one H(12) atom. In the fourteenth O site, O(14) is bonded in a distorted water-like geometry to one Cr(1), one H(11), and one H(9) atom. is represented by the CIF file [CIF]
data_CrH6SO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.787
_cell_length_b   7.541
_cell_length_c   7.298
_cell_angle_alpha   88.091
_cell_angle_beta   66.659
_cell_angle_gamma   85.166
_symmetry_Int_Tables_number   1
_cell_volume   291.397
_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  0.868  0.008  0.269  1.0
  Cr  Cr1  1  0.137  0.507  0.731  1.0
  H  H2  1  0.968  0.649  0.208  1.0
  H  H3  1  0.176  0.148  0.792  1.0
  H  H4  1  0.032  0.708  0.391  1.0
  H  H5  1  0.423  0.207  0.609  1.0
  H  H6  1  0.496  0.782  0.381  1.0
  H  H7  1  0.876  0.281  0.619  1.0
  H  H8  1  0.392  0.972  0.327  1.0
  H  H9  1  0.718  0.472  0.673  1.0
  H  H10  1  0.297  0.207  0.162  1.0
  H  H11  1  0.458  0.707  0.838  1.0
  H  H12  1  0.367  0.018  0.053  1.0
  H  H13  1  0.420  0.518  0.947  1.0
  S  S14  1  0.618  0.427  0.231  1.0
  S  S15  1  0.849  0.926  0.769  1.0
  O  O16  1  0.466  0.388  0.115  1.0
  O  O17  1  0.581  0.887  0.885  1.0
  O  O18  1  0.669  0.257  0.327  1.0
  O  O19  1  0.996  0.756  0.673  1.0
  O  O20  1  0.860  0.499  0.096  1.0
  O  O21  1  0.955  0.998  0.904  1.0
  O  O22  1  0.474  0.555  0.394  1.0
  O  O23  1  0.868  0.055  0.606  1.0
  O  O24  1  0.290  0.246  0.737  1.0
  O  O25  1  0.027  0.747  0.263  1.0
  O  O26  1  0.891  0.412  0.620  1.0
  O  O27  1  0.511  0.913  0.380  1.0
  O  O28  1  0.415  0.583  0.826  1.0
  O  O29  1  0.241  0.084  0.174  1.0
[/CIF]
.