ScNi2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Sc is bonded in a 12-coordinate geometry to twelve equivalent Ni atoms. All Sc–Ni bond lengths are 2.85 Å. Ni is bonded to six equivalent Sc and six equivalent Ni atoms to form a mixture of edge, corner, and face-sharing NiSc6Ni6 cuboctahedra. All Ni–Ni bond lengths are 2.43 Å.