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.
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. The Cr(1)-O(10) bond length is 2.09 Å. The Cr(1)-O(12) bond length is 2.08 Å. The Cr(1)-O(14) bond length is 2.12 Å. The Cr(1)-O(3) bond length is 2.08 Å. The Cr(1)-O(6) bond length is 2.51 Å. The Cr(1)-O(8) bond length is 2.50 Å. 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. The Cr(2)-O(11) bond length is 2.08 Å. The Cr(2)-O(13) bond length is 2.11 Å. The Cr(2)-O(4) bond length is 2.08 Å. The Cr(2)-O(5) bond length is 2.51 Å. The Cr(2)-O(7) bond length is 2.50 Å. The Cr(2)-O(9) bond length is 2.09 Å. 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. The H(1)-O(10) bond length is 1.00 Å. The H(1)-O(5) bond length is 1.71 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) and one O(9) atom. The H(2)-O(6) bond length is 1.71 Å. The H(2)-O(9) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. The H(3)-O(10) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(9) atom. The H(4)-O(9) bond length is 0.98 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(12) and one O(7) atom. The H(5)-O(12) bond length is 1.00 Å. The H(5)-O(7) bond length is 1.72 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(11) and one O(8) atom. The H(6)-O(11) bond length is 1.00 Å. The H(6)-O(8) bond length is 1.72 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(12) atom. The H(7)-O(12) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(11) atom. The H(8)-O(11) bond length is 0.99 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(1) and one O(14) atom. The H(9)-O(1) bond length is 1.69 Å. The H(9)-O(14) bond length is 1.00 Å. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(13) and one O(2) atom. The H(10)-O(13) bond length is 1.00 Å. The H(10)-O(2) bond length is 1.69 Å. In the eleventh H site, H(11) is bonded in a distorted single-bond geometry to one O(14) and one O(2) atom. The H(11)-O(14) bond length is 1.01 Å. The H(11)-O(2) bond length is 1.64 Å. In the twelfth H site, H(12) is bonded in a distorted single-bond geometry to one O(1) and one O(13) atom. The H(12)-O(1) bond length is 1.63 Å. The H(12)-O(13) bond length is 1.01 Å. 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°. The S(1)-O(1) bond length is 1.49 Å. The S(1)-O(3) bond length is 1.51 Å. The S(1)-O(5) bond length is 1.49 Å. The S(1)-O(7) bond length is 1.49 Å. 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°. The S(2)-O(2) bond length is 1.49 Å. The S(2)-O(4) bond length is 1.51 Å. The S(2)-O(6) bond length is 1.49 Å. The S(2)-O(8) bond length is 1.49 Å. 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.