Tb3Nd is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to eight Tb(1,1) and four equivalent Nd(1) atoms to form TbTb8Nd4 cuboctahedra that share corners with four equivalent Nd(1)Tb12 cuboctahedra; corners with fourteen equivalent Tb(1)Tb8Nd4 cuboctahedra; edges with six equivalent Nd(1)Tb12 cuboctahedra; edges with twelve Tb(1,1)Tb8Nd4 cuboctahedra; faces with four equivalent Nd(1)Tb12 cuboctahedra; and faces with sixteen Tb(1,1)Tb8Nd4 cuboctahedra. In the second Tb site, Tb(1) is bonded to eight equivalent Tb(1) and four equivalent Nd(1) atoms to form TbTb8Nd4 cuboctahedra that share corners with four equivalent Nd(1)Tb12 cuboctahedra; corners with fourteen Tb(1,1)Tb8Nd4 cuboctahedra; edges with six equivalent Nd(1)Tb12 cuboctahedra; edges with twelve equivalent Tb(1)Tb8Nd4 cuboctahedra; faces with four equivalent Nd(1)Tb12 cuboctahedra; and faces with sixteen Tb(1,1)Tb8Nd4 cuboctahedra. Nd(1) is bonded to twelve Tb(1,1) atoms to form NdTb12 cuboctahedra that share corners with six equivalent Nd(1)Tb12 cuboctahedra; corners with twelve equivalent Tb(1)Tb8Nd4 cuboctahedra; edges with eighteen Tb(1,1)Tb8Nd4 cuboctahedra; faces with eight equivalent Nd(1)Tb12 cuboctahedra; and faces with twelve Tb(1,1)Tb8Nd4 cuboctahedra.
Tb3Nd is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to eight Tb(1,1) and four equivalent Nd(1) atoms to form TbTb8Nd4 cuboctahedra that share corners with four equivalent Nd(1)Tb12 cuboctahedra; corners with fourteen equivalent Tb(1)Tb8Nd4 cuboctahedra; edges with six equivalent Nd(1)Tb12 cuboctahedra; edges with twelve Tb(1,1)Tb8Nd4 cuboctahedra; faces with four equivalent Nd(1)Tb12 cuboctahedra; and faces with sixteen Tb(1,1)Tb8Nd4 cuboctahedra. There are a spread of Tb(1)-Tb(1,1) bond distances ranging from 3.59-3.71 Å. There are two shorter (3.63 Å) and two longer (3.66 Å) Tb(1)-Nd(1) bond lengths. In the second Tb site, Tb(1) is bonded to eight equivalent Tb(1) and four equivalent Nd(1) atoms to form TbTb8Nd4 cuboctahedra that share corners with four equivalent Nd(1)Tb12 cuboctahedra; corners with fourteen Tb(1,1)Tb8Nd4 cuboctahedra; edges with six equivalent Nd(1)Tb12 cuboctahedra; edges with twelve equivalent Tb(1)Tb8Nd4 cuboctahedra; faces with four equivalent Nd(1)Tb12 cuboctahedra; and faces with sixteen Tb(1,1)Tb8Nd4 cuboctahedra. There are two shorter (3.63 Å) and two longer (3.66 Å) Tb(1)-Nd(1) bond lengths. Nd(1) is bonded to twelve Tb(1,1) atoms to form NdTb12 cuboctahedra that share corners with six equivalent Nd(1)Tb12 cuboctahedra; corners with twelve equivalent Tb(1)Tb8Nd4 cuboctahedra; edges with eighteen Tb(1,1)Tb8Nd4 cuboctahedra; faces with eight equivalent Nd(1)Tb12 cuboctahedra; and faces with twelve Tb(1,1)Tb8Nd4 cuboctahedra.