GdRhIn5 crystallizes in the tetragonal P4/mmm space group. Gd(1) is bonded to four equivalent In(2) and eight equivalent In(1) atoms to form GdIn12 cuboctahedra that share corners with four equivalent Gd(1)In12 cuboctahedra, faces with four equivalent Gd(1)In12 cuboctahedra, and faces with four equivalent In(2)Gd4In8 cuboctahedra. Rh(1) is bonded in a body-centered cubic geometry to eight equivalent In(1) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to two equivalent Gd(1), two equivalent Rh(1), and two equivalent In(2) atoms. In the second In site, In(2) is bonded to four equivalent Gd(1) and eight equivalent In(1) atoms to form distorted InGd4In8 cuboctahedra that share corners with four equivalent In(2)Gd4In8 cuboctahedra, faces with four equivalent Gd(1)In12 cuboctahedra, and faces with four equivalent In(2)Gd4In8 cuboctahedra.
GdRhIn5 crystallizes in the tetragonal P4/mmm space group. Gd(1) is bonded to four equivalent In(2) and eight equivalent In(1) atoms to form GdIn12 cuboctahedra that share corners with four equivalent Gd(1)In12 cuboctahedra, faces with four equivalent Gd(1)In12 cuboctahedra, and faces with four equivalent In(2)Gd4In8 cuboctahedra. All Gd(1)-In(2) bond lengths are 3.29 Å. All Gd(1)-In(1) bond lengths are 3.24 Å. Rh(1) is bonded in a body-centered cubic geometry to eight equivalent In(1) atoms. All Rh(1)-In(1) bond lengths are 2.75 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to two equivalent Gd(1), two equivalent Rh(1), and two equivalent In(2) atoms. Both In(1)-In(2) bond lengths are 3.24 Å. In the second In site, In(2) is bonded to four equivalent Gd(1) and eight equivalent In(1) atoms to form distorted InGd4In8 cuboctahedra that share corners with four equivalent In(2)Gd4In8 cuboctahedra, faces with four equivalent Gd(1)In12 cuboctahedra, and faces with four equivalent In(2)Gd4In8 cuboctahedra.