ScGa2 crystallizes in the monoclinic P2/m space group. Sc(1) is bonded in a 10-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), and six equivalent Ga(1) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to six equivalent Sc(1), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form a mixture of distorted edge, face, and corner-sharing GaSc6Ga6 cuboctahedra. In the second Ga site, Ga(2) is bonded in a distorted square co-planar geometry to four equivalent Sc(1) and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded in a distorted square co-planar geometry to four equivalent Sc(1) and four equivalent Ga(1) atoms.
ScGa2 crystallizes in the monoclinic P2/m space group. Sc(1) is bonded in a 10-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), and six equivalent Ga(1) atoms. Both Sc(1)-Ga(2) bond lengths are 2.82 Å. There is one shorter (2.81 Å) and one longer (2.82 Å) Sc(1)-Ga(3) bond length. There are a spread of Sc(1)-Ga(1) bond distances ranging from 2.91-2.98 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to six equivalent Sc(1), two equivalent Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form a mixture of distorted edge, face, and corner-sharing GaSc6Ga6 cuboctahedra. There is one shorter (2.75 Å) and one longer (2.76 Å) Ga(1)-Ga(1) bond length. There is one shorter (3.02 Å) and one longer (3.03 Å) Ga(1)-Ga(2) bond length. Both Ga(1)-Ga(3) bond lengths are 3.04 Å. In the second Ga site, Ga(2) is bonded in a distorted square co-planar geometry to four equivalent Sc(1) and four equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded in a distorted square co-planar geometry to four equivalent Sc(1) and four equivalent Ga(1) atoms.