InGe3 crystallizes in the tetragonal I4/mmm space group. In(1) is bonded to four equivalent Ge(2) and eight equivalent Ge(1) atoms to form a mixture of corner, edge, and face-sharing InGe12 cuboctahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent In(1) and four equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a square co-planar geometry to four equivalent In(1) atoms.
InGe3 crystallizes in the tetragonal I4/mmm space group. In(1) is bonded to four equivalent Ge(2) and eight equivalent Ge(1) atoms to form a mixture of corner, edge, and face-sharing InGe12 cuboctahedra. All In(1)-Ge(2) bond lengths are 3.02 Å. All In(1)-Ge(1) bond lengths are 3.22 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent In(1) and four equivalent Ge(1) atoms. All Ge(1)-Ge(1) bond lengths are 3.02 Å. In the second Ge site, Ge(2) is bonded in a square co-planar geometry to four equivalent In(1) atoms.