CrOOH crystallizes in the monoclinic P2_1/c space group. Cr(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form edge-sharing CrO6 octahedra. H(1) is bonded in a linear geometry to one O(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Cr(1) and one H(1) atom to form a mixture of distorted edge and corner-sharing OCr3H tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Cr(1) and one H(1) atom.
CrOOH crystallizes in the monoclinic P2_1/c space group. Cr(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form edge-sharing CrO6 octahedra. There are a spread of Cr(1)-O(1) bond distances ranging from 1.96-1.99 Å. There are a spread of Cr(1)-O(2) bond distances ranging from 2.00-2.03 Å. H(1) is bonded in a linear geometry to one O(1) and one O(2) atom. The H(1)-O(1) bond length is 1.43 Å. The H(1)-O(2) bond length is 1.05 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Cr(1) and one H(1) atom to form a mixture of distorted edge and corner-sharing OCr3H tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Cr(1) and one H(1) atom.