ZnH2SO5 crystallizes in the monoclinic C2/c space group. Zn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form ZnO6 octahedra that share corners with two equivalent Zn(1)O6 octahedra and corners with four equivalent S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. H(1) is bonded in a single-bond geometry to one O(2) and one O(3) atom. 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 Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-48°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Zn(1), one H(1), and one S(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to two equivalent Zn(1) and two equivalent H(1) atoms.
ZnH2SO5 crystallizes in the monoclinic C2/c space group. Zn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form ZnO6 octahedra that share corners with two equivalent Zn(1)O6 octahedra and corners with four equivalent S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. Both Zn(1)-O(1) bond lengths are 2.06 Å. Both Zn(1)-O(2) bond lengths are 2.12 Å. Both Zn(1)-O(3) bond lengths are 2.21 Å. H(1) is bonded in a single-bond geometry to one O(2) and one O(3) atom. The H(1)-O(2) bond length is 1.74 Å. The H(1)-O(3) bond length is 1.00 Å. 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 Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-48°. Both S(1)-O(1) bond lengths are 1.48 Å. Both S(1)-O(2) bond lengths are 1.50 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Zn(1), one H(1), and one S(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to two equivalent Zn(1) and two equivalent H(1) atoms.