Ru3Nb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Nb(1) is bonded to twelve equivalent Ru(1) atoms to form NbRu12 cuboctahedra that share corners with twelve equivalent Nb(1)Ru12 cuboctahedra, edges with twenty-four equivalent Ru(1)Nb4Ru8 cuboctahedra, faces with six equivalent Nb(1)Ru12 cuboctahedra, and faces with twelve equivalent Ru(1)Nb4Ru8 cuboctahedra. Ru(1) is bonded to four equivalent Nb(1) and eight equivalent Ru(1) atoms to form distorted RuNb4Ru8 cuboctahedra that share corners with twelve equivalent Ru(1)Nb4Ru8 cuboctahedra, edges with eight equivalent Nb(1)Ru12 cuboctahedra, edges with sixteen equivalent Ru(1)Nb4Ru8 cuboctahedra, faces with four equivalent Nb(1)Ru12 cuboctahedra, and faces with fourteen equivalent Ru(1)Nb4Ru8 cuboctahedra.
Ru3Nb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Nb(1) is bonded to twelve equivalent Ru(1) atoms to form NbRu12 cuboctahedra that share corners with twelve equivalent Nb(1)Ru12 cuboctahedra, edges with twenty-four equivalent Ru(1)Nb4Ru8 cuboctahedra, faces with six equivalent Nb(1)Ru12 cuboctahedra, and faces with twelve equivalent Ru(1)Nb4Ru8 cuboctahedra. All Nb(1)-Ru(1) bond lengths are 2.75 Å. Ru(1) is bonded to four equivalent Nb(1) and eight equivalent Ru(1) atoms to form distorted RuNb4Ru8 cuboctahedra that share corners with twelve equivalent Ru(1)Nb4Ru8 cuboctahedra, edges with eight equivalent Nb(1)Ru12 cuboctahedra, edges with sixteen equivalent Ru(1)Nb4Ru8 cuboctahedra, faces with four equivalent Nb(1)Ru12 cuboctahedra, and faces with fourteen equivalent Ru(1)Nb4Ru8 cuboctahedra. All Ru(1)-Ru(1) bond lengths are 2.75 Å.