Li2CoH8(SO6)2 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms to form distorted LiO6 octahedra that share corners with two equivalent Co(1)O6 octahedra, corners with four equivalent S(1)O4 tetrahedra, and  an edgeedge with one Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-63°. Co(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with four equivalent Li(1)O6 octahedra and corners with two equivalent S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-63°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) 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 distorted single-bond geometry to one O(5) and one O(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(3) atom. S(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form SO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and corners with four equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-57°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Li(1) and one S(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Li(1), one Co(1), one H(1), and one H(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Li(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Li(1), one Co(1), one H(2), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one H(3), and one S(1) atom.
Li2CoH8(SO6)2 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms to form distorted LiO6 octahedra that share corners with two equivalent Co(1)O6 octahedra, corners with four equivalent S(1)O4 tetrahedra, and  an edgeedge with one Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-63°. The Li(1)-O(3) bond length is 2.44 Å. The Li(1)-O(4) bond length is 2.31 Å. The Li(1)-O(5) bond length is 2.18 Å. The Li(1)-O(6) bond length is 2.46 Å. There is one shorter (2.14 Å) and one longer (2.24 Å) Li(1)-O(2) bond length. Co(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with four equivalent Li(1)O6 octahedra and corners with two equivalent S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-63°. Both Co(1)-O(1) bond lengths are 2.09 Å. Both Co(1)-O(3) bond lengths are 2.15 Å. Both Co(1)-O(5) bond lengths are 2.09 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. The H(1)-O(3) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. The H(2)-O(5) bond length is 0.99 Å. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(5) and one O(6) atom. The H(3)-O(5) bond length is 1.01 Å. The H(3)-O(6) bond length is 1.63 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(3) atom. The H(4)-O(3) bond length is 0.99 Å. S(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form SO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and corners with four equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-57°. The S(1)-O(1) bond length is 1.49 Å. The S(1)-O(2) bond length is 1.48 Å. The S(1)-O(4) bond length is 1.51 Å. The S(1)-O(6) bond length is 1.51 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Li(1) and one S(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Li(1), one Co(1), one H(1), and one H(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Li(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Li(1), one Co(1), one H(2), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one H(3), and one S(1) atom.