UTh3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. U(1) is bonded to twelve equivalent Th(1) atoms to form UTh12 cuboctahedra that share corners with twelve equivalent U(1)Th12 cuboctahedra, edges with twenty-four equivalent Th(1)Th8U4 cuboctahedra, faces with six equivalent U(1)Th12 cuboctahedra, and faces with twelve equivalent Th(1)Th8U4 cuboctahedra. Th(1) is bonded to four equivalent U(1) and eight equivalent Th(1) atoms to form ThTh8U4 cuboctahedra that share corners with twelve equivalent Th(1)Th8U4 cuboctahedra, edges with eight equivalent U(1)Th12 cuboctahedra, edges with sixteen equivalent Th(1)Th8U4 cuboctahedra, faces with four equivalent U(1)Th12 cuboctahedra, and faces with fourteen equivalent Th(1)Th8U4 cuboctahedra.
UTh3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. U(1) is bonded to twelve equivalent Th(1) atoms to form UTh12 cuboctahedra that share corners with twelve equivalent U(1)Th12 cuboctahedra, edges with twenty-four equivalent Th(1)Th8U4 cuboctahedra, faces with six equivalent U(1)Th12 cuboctahedra, and faces with twelve equivalent Th(1)Th8U4 cuboctahedra. All U(1)-Th(1) bond lengths are 3.48 Å. Th(1) is bonded to four equivalent U(1) and eight equivalent Th(1) atoms to form ThTh8U4 cuboctahedra that share corners with twelve equivalent Th(1)Th8U4 cuboctahedra, edges with eight equivalent U(1)Th12 cuboctahedra, edges with sixteen equivalent Th(1)Th8U4 cuboctahedra, faces with four equivalent U(1)Th12 cuboctahedra, and faces with fourteen equivalent Th(1)Th8U4 cuboctahedra. All Th(1)-Th(1) bond lengths are 3.48 Å.