Pu3La is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded to eight equivalent Pu(2) and four equivalent La(1) atoms to form PuLa4Pu8 cuboctahedra that share corners with four equivalent Pu(1)La4Pu8 cuboctahedra, corners with eight equivalent La(1)Pu12 cuboctahedra, edges with eight equivalent Pu(1)La4Pu8 cuboctahedra, edges with sixteen equivalent Pu(2)La4Pu8 cuboctahedra, faces with four equivalent Pu(1)La4Pu8 cuboctahedra, faces with six equivalent La(1)Pu12 cuboctahedra, and faces with eight equivalent Pu(2)La4Pu8 cuboctahedra. In the second Pu site, Pu(2) is bonded to four equivalent Pu(1), four equivalent Pu(2), and four equivalent La(1) atoms to form PuLa4Pu8 cuboctahedra that share corners with twelve equivalent Pu(2)La4Pu8 cuboctahedra, edges with eight equivalent Pu(1)La4Pu8 cuboctahedra, edges with eight equivalent Pu(2)La4Pu8 cuboctahedra, edges with eight equivalent La(1)Pu12 cuboctahedra, faces with four equivalent Pu(1)La4Pu8 cuboctahedra, faces with four equivalent La(1)Pu12 cuboctahedra, and faces with ten equivalent Pu(2)La4Pu8 cuboctahedra. La(1) is bonded to four equivalent Pu(1) and eight equivalent Pu(2) atoms to form LaPu12 cuboctahedra that share corners with four equivalent La(1)Pu12 cuboctahedra, corners with eight equivalent Pu(1)La4Pu8 cuboctahedra, edges with eight equivalent La(1)Pu12 cuboctahedra, edges with sixteen equivalent Pu(2)La4Pu8 cuboctahedra, faces with four equivalent La(1)Pu12 cuboctahedra, faces with six equivalent Pu(1)La4Pu8 cuboctahedra, and faces with eight equivalent Pu(2)La4Pu8 cuboctahedra.
Pu3La is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded to eight equivalent Pu(2) and four equivalent La(1) atoms to form PuLa4Pu8 cuboctahedra that share corners with four equivalent Pu(1)La4Pu8 cuboctahedra, corners with eight equivalent La(1)Pu12 cuboctahedra, edges with eight equivalent Pu(1)La4Pu8 cuboctahedra, edges with sixteen equivalent Pu(2)La4Pu8 cuboctahedra, faces with four equivalent Pu(1)La4Pu8 cuboctahedra, faces with six equivalent La(1)Pu12 cuboctahedra, and faces with eight equivalent Pu(2)La4Pu8 cuboctahedra. All Pu(1)-Pu(2) bond lengths are 3.48 Å. All Pu(1)-La(1) bond lengths are 3.47 Å. In the second Pu site, Pu(2) is bonded to four equivalent Pu(1), four equivalent Pu(2), and four equivalent La(1) atoms to form PuLa4Pu8 cuboctahedra that share corners with twelve equivalent Pu(2)La4Pu8 cuboctahedra, edges with eight equivalent Pu(1)La4Pu8 cuboctahedra, edges with eight equivalent Pu(2)La4Pu8 cuboctahedra, edges with eight equivalent La(1)Pu12 cuboctahedra, faces with four equivalent Pu(1)La4Pu8 cuboctahedra, faces with four equivalent La(1)Pu12 cuboctahedra, and faces with ten equivalent Pu(2)La4Pu8 cuboctahedra. All Pu(2)-Pu(2) bond lengths are 3.47 Å. All Pu(2)-La(1) bond lengths are 3.48 Å. La(1) is bonded to four equivalent Pu(1) and eight equivalent Pu(2) atoms to form LaPu12 cuboctahedra that share corners with four equivalent La(1)Pu12 cuboctahedra, corners with eight equivalent Pu(1)La4Pu8 cuboctahedra, edges with eight equivalent La(1)Pu12 cuboctahedra, edges with sixteen equivalent Pu(2)La4Pu8 cuboctahedra, faces with four equivalent La(1)Pu12 cuboctahedra, faces with six equivalent Pu(1)La4Pu8 cuboctahedra, and faces with eight equivalent Pu(2)La4Pu8 cuboctahedra.