ThTbRe4 is Cubic Laves-derived structured and crystallizes in the trigonal P-3m1 space group. Th(1) is bonded in a 16-coordinate geometry to three equivalent Th(1), one Tb(1), three equivalent Re(2), and nine equivalent Re(3) atoms. Tb(1) is bonded in a 16-coordinate geometry to one Th(1), three equivalent Tb(1), three equivalent Re(1), and nine equivalent Re(3) atoms. There are three inequivalent Re sites. In the first Re site, Re(1) is bonded to six equivalent Tb(1) and six equivalent Re(3) atoms to form ReTb6Re6 cuboctahedra that share corners with twelve equivalent Re(3)Tb3Th3Re6 cuboctahedra, edges with six equivalent Re(1)Tb6Re6 cuboctahedra, faces with two equivalent Re(2)Th6Re6 cuboctahedra, and faces with eighteen equivalent Re(3)Tb3Th3Re6 cuboctahedra. In the second Re site, Re(2) is bonded to six equivalent Th(1) and six equivalent Re(3) atoms to form ReTh6Re6 cuboctahedra that share corners with twelve equivalent Re(3)Tb3Th3Re6 cuboctahedra, edges with six equivalent Re(2)Th6Re6 cuboctahedra, faces with two equivalent Re(1)Tb6Re6 cuboctahedra, and faces with eighteen equivalent Re(3)Tb3Th3Re6 cuboctahedra. In the third Re site, Re(3) is bonded to three equivalent Th(1), three equivalent Tb(1), one Re(1), one Re(2), and four equivalent Re(3) atoms to form ReTb3Th3Re6 cuboctahedra that share corners with two equivalent Re(1)Tb6Re6 cuboctahedra, corners with two equivalent Re(2)Th6Re6 cuboctahedra, corners with fourteen equivalent Re(3)Tb3Th3Re6 cuboctahedra, edges with six equivalent Re(3)Tb3Th3Re6 cuboctahedra, faces with three equivalent Re(1)Tb6Re6 cuboctahedra, faces with three equivalent Re(2)Th6Re6 cuboctahedra, and faces with twelve equivalent Re(3)Tb3Th3Re6 cuboctahedra.
ThTbRe4 is Cubic Laves-derived structured and crystallizes in the trigonal P-3m1 space group. Th(1) is bonded in a 16-coordinate geometry to three equivalent Th(1), one Tb(1), three equivalent Re(2), and nine equivalent Re(3) atoms. All Th(1)-Th(1) bond lengths are 3.33 Å. The Th(1)-Tb(1) bond length is 3.46 Å. All Th(1)-Re(2) bond lengths are 3.18 Å. There are six shorter (3.26 Å) and three longer (3.30 Å) Th(1)-Re(3) bond lengths. Tb(1) is bonded in a 16-coordinate geometry to one Th(1), three equivalent Tb(1), three equivalent Re(1), and nine equivalent Re(3) atoms. All Tb(1)-Tb(1) bond lengths are 3.33 Å. All Tb(1)-Re(1) bond lengths are 3.18 Å. All Tb(1)-Re(3) bond lengths are 3.18 Å. There are three inequivalent Re sites. In the first Re site, Re(1) is bonded to six equivalent Tb(1) and six equivalent Re(3) atoms to form ReTb6Re6 cuboctahedra that share corners with twelve equivalent Re(3)Tb3Th3Re6 cuboctahedra, edges with six equivalent Re(1)Tb6Re6 cuboctahedra, faces with two equivalent Re(2)Th6Re6 cuboctahedra, and faces with eighteen equivalent Re(3)Tb3Th3Re6 cuboctahedra. All Re(1)-Re(3) bond lengths are 2.74 Å. In the second Re site, Re(2) is bonded to six equivalent Th(1) and six equivalent Re(3) atoms to form ReTh6Re6 cuboctahedra that share corners with twelve equivalent Re(3)Tb3Th3Re6 cuboctahedra, edges with six equivalent Re(2)Th6Re6 cuboctahedra, faces with two equivalent Re(1)Tb6Re6 cuboctahedra, and faces with eighteen equivalent Re(3)Tb3Th3Re6 cuboctahedra. All Re(2)-Re(3) bond lengths are 2.85 Å. In the third Re site, Re(3) is bonded to three equivalent Th(1), three equivalent Tb(1), one Re(1), one Re(2), and four equivalent Re(3) atoms to form ReTb3Th3Re6 cuboctahedra that share corners with two equivalent Re(1)Tb6Re6 cuboctahedra, corners with two equivalent Re(2)Th6Re6 cuboctahedra, corners with fourteen equivalent Re(3)Tb3Th3Re6 cuboctahedra, edges with six equivalent Re(3)Tb3Th3Re6 cuboctahedra, faces with three equivalent Re(1)Tb6Re6 cuboctahedra, faces with three equivalent Re(2)Th6Re6 cuboctahedra, and faces with twelve equivalent Re(3)Tb3Th3Re6 cuboctahedra. There are two shorter (2.66 Å) and two longer (2.77 Å) Re(3)-Re(3) bond lengths.