CoHSO4 crystallizes in the monoclinic C2/c space group. Co(1) is bonded to two equivalent H(1), two equivalent O(1), and two equivalent O(2) atoms to form CoH2O4 octahedra that share corners with two equivalent Co(1)H2O4 octahedra and corners with four equivalent S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. H(1) is bonded in a bent 150 degrees geometry to two equivalent Co(1) atoms. S(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form SO4 tetrahedra that share corners with four equivalent Co(1)H2O4 octahedra. The corner-sharing octahedral tilt angles range from 36-52°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Co(1) and one S(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Co(1) and one S(1) atom.
CoHSO4 crystallizes in the monoclinic C2/c space group. Co(1) is bonded to two equivalent H(1), two equivalent O(1), and two equivalent O(2) atoms to form CoH2O4 octahedra that share corners with two equivalent Co(1)H2O4 octahedra and corners with four equivalent S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. Both Co(1)-H(1) bond lengths are 1.66 Å. Both Co(1)-O(1) bond lengths are 2.03 Å. Both Co(1)-O(2) bond lengths are 1.94 Å. H(1) is bonded in a bent 150 degrees geometry to two equivalent Co(1) atoms. S(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form SO4 tetrahedra that share corners with four equivalent Co(1)H2O4 octahedra. The corner-sharing octahedral tilt angles range from 36-52°. Both S(1)-O(1) bond lengths are 1.48 Å. Both S(1)-O(2) bond lengths are 1.50 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Co(1) and one S(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Co(1) and one S(1) atom.