U3Yb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. U(1) is bonded to eight equivalent U(1) and four equivalent Yb(1) atoms to form UYb4U8 cuboctahedra that share corners with twelve equivalent U(1)Yb4U8 cuboctahedra, edges with eight equivalent Yb(1)U12 cuboctahedra, edges with sixteen equivalent U(1)Yb4U8 cuboctahedra, faces with four equivalent Yb(1)U12 cuboctahedra, and faces with fourteen equivalent U(1)Yb4U8 cuboctahedra. Yb(1) is bonded to twelve equivalent U(1) atoms to form YbU12 cuboctahedra that share corners with twelve equivalent Yb(1)U12 cuboctahedra, edges with twenty-four equivalent U(1)Yb4U8 cuboctahedra, faces with six equivalent Yb(1)U12 cuboctahedra, and faces with twelve equivalent U(1)Yb4U8 cuboctahedra.
U3Yb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. U(1) is bonded to eight equivalent U(1) and four equivalent Yb(1) atoms to form UYb4U8 cuboctahedra that share corners with twelve equivalent U(1)Yb4U8 cuboctahedra, edges with eight equivalent Yb(1)U12 cuboctahedra, edges with sixteen equivalent U(1)Yb4U8 cuboctahedra, faces with four equivalent Yb(1)U12 cuboctahedra, and faces with fourteen equivalent U(1)Yb4U8 cuboctahedra. All U(1)-U(1) bond lengths are 3.13 Å. All U(1)-Yb(1) bond lengths are 3.13 Å. Yb(1) is bonded to twelve equivalent U(1) atoms to form YbU12 cuboctahedra that share corners with twelve equivalent Yb(1)U12 cuboctahedra, edges with twenty-four equivalent U(1)Yb4U8 cuboctahedra, faces with six equivalent Yb(1)U12 cuboctahedra, and faces with twelve equivalent U(1)Yb4U8 cuboctahedra.