UCrCo crystallizes in the orthorhombic Imma space group. U(1) is bonded in a 14-coordinate geometry to two equivalent U(1), six equivalent Cr(1), and six equivalent Co(1) atoms. Cr(1) is bonded to six equivalent U(1), two equivalent Cr(1), and four equivalent Co(1) atoms to form distorted CrU6Cr2Co4 cuboctahedra that share corners with eight equivalent Co(1)U6Cr4Co2 cuboctahedra, corners with ten equivalent Cr(1)U6Cr2Co4 cuboctahedra, edges with six equivalent Cr(1)U6Cr2Co4 cuboctahedra, faces with six equivalent Cr(1)U6Cr2Co4 cuboctahedra, and faces with twelve equivalent Co(1)U6Cr4Co2 cuboctahedra. Co(1) is bonded to six equivalent U(1), four equivalent Cr(1), and two equivalent Co(1) atoms to form CoU6Cr4Co2 cuboctahedra that share corners with eight equivalent Cr(1)U6Cr2Co4 cuboctahedra, corners with ten equivalent Co(1)U6Cr4Co2 cuboctahedra, edges with six equivalent Co(1)U6Cr4Co2 cuboctahedra, faces with six equivalent Co(1)U6Cr4Co2 cuboctahedra, and faces with twelve equivalent Cr(1)U6Cr2Co4 cuboctahedra.
UCrCo crystallizes in the orthorhombic Imma space group. U(1) is bonded in a 14-coordinate geometry to two equivalent U(1), six equivalent Cr(1), and six equivalent Co(1) atoms. Both U(1)-U(1) bond lengths are 2.76 Å. There are four shorter (2.89 Å) and two longer (3.19 Å) U(1)-Cr(1) bond lengths. There are four shorter (2.80 Å) and two longer (2.99 Å) U(1)-Co(1) bond lengths. Cr(1) is bonded to six equivalent U(1), two equivalent Cr(1), and four equivalent Co(1) atoms to form distorted CrU6Cr2Co4 cuboctahedra that share corners with eight equivalent Co(1)U6Cr4Co2 cuboctahedra, corners with ten equivalent Cr(1)U6Cr2Co4 cuboctahedra, edges with six equivalent Cr(1)U6Cr2Co4 cuboctahedra, faces with six equivalent Cr(1)U6Cr2Co4 cuboctahedra, and faces with twelve equivalent Co(1)U6Cr4Co2 cuboctahedra. Both Cr(1)-Cr(1) bond lengths are 2.24 Å. All Cr(1)-Co(1) bond lengths are 2.55 Å. Co(1) is bonded to six equivalent U(1), four equivalent Cr(1), and two equivalent Co(1) atoms to form CoU6Cr4Co2 cuboctahedra that share corners with eight equivalent Cr(1)U6Cr2Co4 cuboctahedra, corners with ten equivalent Co(1)U6Cr4Co2 cuboctahedra, edges with six equivalent Co(1)U6Cr4Co2 cuboctahedra, faces with six equivalent Co(1)U6Cr4Co2 cuboctahedra, and faces with twelve equivalent Cr(1)U6Cr2Co4 cuboctahedra. Both Co(1)-Co(1) bond lengths are 2.54 Å.