Materials Data on KNd by Materials Project

Abstract

KNd is alpha Samarium-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. K is bonded to six equivalent K and six equivalent Nd atoms to form KK6Nd6 cuboctahedra that share corners with eighteen equivalent KK6Nd6 cuboctahedra, edges with six equivalent KK6Nd6 cuboctahedra, edges with twelve equivalent NdK6Nd6 cuboctahedra, faces with eight equivalent KK6Nd6 cuboctahedra, and faces with twelve equivalent NdK6Nd6 cuboctahedra. All K–K bond lengths are 3.72 Å. All K–Nd bond lengths are 4.21 Å. Nd is bonded to six equivalent K and six equivalent Nd atoms to form NdK6Nd6 cuboctahedra that share corners with eighteen equivalent NdK6Nd6 cuboctahedra, edges with six equivalent NdK6Nd6 cuboctahedra, edges with twelve equivalent KK6Nd6 cuboctahedra, faces with eight equivalent NdK6Nd6 cuboctahedra, and faces with twelve equivalent KK6Nd6 cuboctahedra. All Nd–Nd bond lengths are 3.72 Å.