In2(SO4)3 crystallizes in the trigonal R-3c space group. In(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form InO6 octahedra that share corners with six equivalent S(1)O4 tetrahedra. 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 In(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-30°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to one In(1) and one S(1) atom. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one In(1) and one S(1) atom.
In2(SO4)3 crystallizes in the trigonal R-3c space group. In(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form InO6 octahedra that share corners with six equivalent S(1)O4 tetrahedra. All In(1)-O(1) bond lengths are 2.14 Å. All In(1)-O(2) bond lengths are 2.14 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 In(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-30°. Both S(1)-O(1) bond lengths are 1.48 Å. Both S(1)-O(2) bond lengths are 1.48 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to one In(1) and one S(1) atom. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one In(1) and one S(1) atom.