PuUSn6 is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. Pu(1) is bonded to four equivalent Sn(1) and eight equivalent Sn(3) atoms to form PuSn12 cuboctahedra that share corners with four equivalent Pu(1)Sn12 cuboctahedra, corners with eight equivalent U(1)Sn12 cuboctahedra, edges with eight equivalent Sn(2)U4Sn8 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent U(1)Sn12 cuboctahedra, faces with four equivalent Pu(1)Sn12 cuboctahedra, faces with four equivalent Sn(1)Pu4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. U(1) is bonded to four equivalent Sn(2) and eight equivalent Sn(3) atoms to form USn12 cuboctahedra that share corners with four equivalent U(1)Sn12 cuboctahedra, corners with eight equivalent Pu(1)Sn12 cuboctahedra, edges with eight equivalent Sn(1)Pu4Sn8 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Pu(1)Sn12 cuboctahedra, faces with four equivalent U(1)Sn12 cuboctahedra, faces with four equivalent Sn(2)U4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to four equivalent Pu(1) and eight equivalent Sn(3) atoms to form distorted SnPu4Sn8 cuboctahedra that share corners with four equivalent Sn(1)Pu4Sn8 cuboctahedra, corners with eight equivalent Sn(2)U4Sn8 cuboctahedra, edges with eight equivalent U(1)Sn12 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Sn(2)U4Sn8 cuboctahedra, faces with four equivalent Pu(1)Sn12 cuboctahedra, faces with four equivalent Sn(1)Pu4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. In the second Sn site, Sn(2) is bonded to four equivalent U(1) and eight equivalent Sn(3) atoms to form distorted SnU4Sn8 cuboctahedra that share corners with four equivalent Sn(2)U4Sn8 cuboctahedra, corners with eight equivalent Sn(1)Pu4Sn8 cuboctahedra, edges with eight equivalent Pu(1)Sn12 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Sn(1)Pu4Sn8 cuboctahedra, faces with four equivalent U(1)Sn12 cuboctahedra, faces with four equivalent Sn(2)U4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. In the third Sn site, Sn(3) is bonded to two equivalent Pu(1), two equivalent U(1), two equivalent Sn(1), two equivalent Sn(2), and four equivalent Sn(3) atoms to form distorted SnPu2U2Sn8 cuboctahedra that share corners with twelve equivalent Sn(3)Pu2U2Sn8 cuboctahedra, edges with four equivalent Pu(1)Sn12 cuboctahedra, edges with four equivalent U(1)Sn12 cuboctahedra, edges with four equivalent Sn(1)Pu4Sn8 cuboctahedra, edges with four equivalent Sn(2)U4Sn8 cuboctahedra, edges with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Pu(1)Sn12 cuboctahedra, faces with two equivalent U(1)Sn12 cuboctahedra, faces with two equivalent Sn(1)Pu4Sn8 cuboctahedra, faces with two equivalent Sn(2)U4Sn8 cuboctahedra, and faces with ten equivalent Sn(3)Pu2U2Sn8 cuboctahedra.
PuUSn6 is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. Pu(1) is bonded to four equivalent Sn(1) and eight equivalent Sn(3) atoms to form PuSn12 cuboctahedra that share corners with four equivalent Pu(1)Sn12 cuboctahedra, corners with eight equivalent U(1)Sn12 cuboctahedra, edges with eight equivalent Sn(2)U4Sn8 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent U(1)Sn12 cuboctahedra, faces with four equivalent Pu(1)Sn12 cuboctahedra, faces with four equivalent Sn(1)Pu4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. All Pu(1)-Sn(1) bond lengths are 3.26 Å. All Pu(1)-Sn(3) bond lengths are 3.26 Å. U(1) is bonded to four equivalent Sn(2) and eight equivalent Sn(3) atoms to form USn12 cuboctahedra that share corners with four equivalent U(1)Sn12 cuboctahedra, corners with eight equivalent Pu(1)Sn12 cuboctahedra, edges with eight equivalent Sn(1)Pu4Sn8 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Pu(1)Sn12 cuboctahedra, faces with four equivalent U(1)Sn12 cuboctahedra, faces with four equivalent Sn(2)U4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. All U(1)-Sn(2) bond lengths are 3.26 Å. All U(1)-Sn(3) bond lengths are 3.28 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to four equivalent Pu(1) and eight equivalent Sn(3) atoms to form distorted SnPu4Sn8 cuboctahedra that share corners with four equivalent Sn(1)Pu4Sn8 cuboctahedra, corners with eight equivalent Sn(2)U4Sn8 cuboctahedra, edges with eight equivalent U(1)Sn12 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Sn(2)U4Sn8 cuboctahedra, faces with four equivalent Pu(1)Sn12 cuboctahedra, faces with four equivalent Sn(1)Pu4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. All Sn(1)-Sn(3) bond lengths are 3.26 Å. In the second Sn site, Sn(2) is bonded to four equivalent U(1) and eight equivalent Sn(3) atoms to form distorted SnU4Sn8 cuboctahedra that share corners with four equivalent Sn(2)U4Sn8 cuboctahedra, corners with eight equivalent Sn(1)Pu4Sn8 cuboctahedra, edges with eight equivalent Pu(1)Sn12 cuboctahedra, edges with sixteen equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Sn(1)Pu4Sn8 cuboctahedra, faces with four equivalent U(1)Sn12 cuboctahedra, faces with four equivalent Sn(2)U4Sn8 cuboctahedra, and faces with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra. All Sn(2)-Sn(3) bond lengths are 3.28 Å. In the third Sn site, Sn(3) is bonded to two equivalent Pu(1), two equivalent U(1), two equivalent Sn(1), two equivalent Sn(2), and four equivalent Sn(3) atoms to form distorted SnPu2U2Sn8 cuboctahedra that share corners with twelve equivalent Sn(3)Pu2U2Sn8 cuboctahedra, edges with four equivalent Pu(1)Sn12 cuboctahedra, edges with four equivalent U(1)Sn12 cuboctahedra, edges with four equivalent Sn(1)Pu4Sn8 cuboctahedra, edges with four equivalent Sn(2)U4Sn8 cuboctahedra, edges with eight equivalent Sn(3)Pu2U2Sn8 cuboctahedra, faces with two equivalent Pu(1)Sn12 cuboctahedra, faces with two equivalent U(1)Sn12 cuboctahedra, faces with two equivalent Sn(1)Pu4Sn8 cuboctahedra, faces with two equivalent Sn(2)U4Sn8 cuboctahedra, and faces with ten equivalent Sn(3)Pu2U2Sn8 cuboctahedra. All Sn(3)-Sn(3) bond lengths are 3.26 Å.