Pu5Ru3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a 6-coordinate geometry to two equivalent Ru(2) and four equivalent Ru(1) atoms. In the second Pu site, Pu(2) is bonded to four equivalent Ru(1) atoms to form distorted edge-sharing PuRu4 tetrahedra. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 10-coordinate geometry to two equivalent Pu(2) and eight equivalent Pu(1) atoms. In the second Ru site, Ru(2) is bonded in a 8-coordinate geometry to eight equivalent Pu(1) atoms.
Pu5Ru3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a 6-coordinate geometry to two equivalent Ru(2) and four equivalent Ru(1) atoms. Both Pu(1)-Ru(2) bond lengths are 2.91 Å. There are a spread of Pu(1)-Ru(1) bond distances ranging from 2.93-3.25 Å. In the second Pu site, Pu(2) is bonded to four equivalent Ru(1) atoms to form distorted edge-sharing PuRu4 tetrahedra. All Pu(2)-Ru(1) bond lengths are 2.66 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 10-coordinate geometry to two equivalent Pu(2) and eight equivalent Pu(1) atoms. In the second Ru site, Ru(2) is bonded in a 8-coordinate geometry to eight equivalent Pu(1) atoms.