H4CoO8V2(H2O)2 crystallizes in the monoclinic C2/c space group. The structure consists of eight water molecules inside a H4CoO8V2 framework. In the H4CoO8V2 framework, V(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), and three equivalent O(1) atoms. Co(1) is bonded in an octahedral geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(3) is bonded in a single-bond geometry to one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent V(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to one V(1) and one Co(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one V(1) and one Co(1) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Co(1), one H(1), and one H(3) atom.
H4CoO8V2(H2O)2 crystallizes in the monoclinic C2/c space group. The structure consists of eight water molecules inside a H4CoO8V2 framework. In the H4CoO8V2 framework, V(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), and three equivalent O(1) atoms. The V(1)-O(2) bond length is 1.69 Å. The V(1)-O(3) bond length is 1.69 Å. There are a spread of V(1)-O(1) bond distances ranging from 1.91-2.05 Å. Co(1) is bonded in an octahedral geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Co(1)-O(2) bond lengths are 2.21 Å. Both Co(1)-O(3) bond lengths are 2.06 Å. Both Co(1)-O(4) bond lengths are 2.05 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. The H(1)-O(4) bond length is 0.99 Å. In the second H site, H(3) is bonded in a single-bond geometry to one O(4) atom. The H(3)-O(4) bond length is 1.00 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent V(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to one V(1) and one Co(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one V(1) and one Co(1) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Co(1), one H(1), and one H(3) atom.