Er3As is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Er(1) is bonded in a distorted square co-planar geometry to four equivalent As(1) atoms. As(1) is bonded to twelve equivalent Er(1) atoms to form a mixture of face and corner-sharing AsEr12 cuboctahedra.
Er3As is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Er(1) is bonded in a distorted square co-planar geometry to four equivalent As(1) atoms. All Er(1)-As(1) bond lengths are 3.25 Å. As(1) is bonded to twelve equivalent Er(1) atoms to form a mixture of face and corner-sharing AsEr12 cuboctahedra.