Zr6Rh7Al16 crystallizes in the cubic Fm-3m space group. Zr(1) is bonded in a 12-coordinate geometry to four equivalent Rh(2), four equivalent Al(1), and four equivalent Al(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(2) is bonded to four equivalent Zr(1), four equivalent Al(1), and four equivalent Al(2) atoms to form distorted RhZr4Al8 cuboctahedra that share corners with four equivalent Rh(2)Zr4Al8 cuboctahedra, corners with eight equivalent Al(1)Zr3Rh4 tetrahedra, edges with four equivalent Al(1)Zr3Rh4 tetrahedra, and faces with eight equivalent Rh(2)Zr4Al8 cuboctahedra. In the second Rh site, Rh(1) is bonded in a body-centered cubic geometry to eight equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Zr(1) and three equivalent Rh(2) atoms. In the second Al site, Al(1) is bonded to three equivalent Zr(1), one Rh(1), and three equivalent Rh(2) atoms to form distorted AlZr3Rh4 tetrahedra that share corners with six equivalent Rh(2)Zr4Al8 cuboctahedra, corners with seven equivalent Al(1)Zr3Rh4 tetrahedra, edges with three equivalent Rh(2)Zr4Al8 cuboctahedra, edges with three equivalent Al(1)Zr3Rh4 tetrahedra, and faces with three equivalent Al(1)Zr3Rh4 tetrahedra.
Zr6Rh7Al16 crystallizes in the cubic Fm-3m space group. Zr(1) is bonded in a 12-coordinate geometry to four equivalent Rh(2), four equivalent Al(1), and four equivalent Al(2) atoms. All Zr(1)-Rh(2) bond lengths are 3.18 Å. All Zr(1)-Al(1) bond lengths are 3.15 Å. All Zr(1)-Al(2) bond lengths are 2.87 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(2) is bonded to four equivalent Zr(1), four equivalent Al(1), and four equivalent Al(2) atoms to form distorted RhZr4Al8 cuboctahedra that share corners with four equivalent Rh(2)Zr4Al8 cuboctahedra, corners with eight equivalent Al(1)Zr3Rh4 tetrahedra, edges with four equivalent Al(1)Zr3Rh4 tetrahedra, and faces with eight equivalent Rh(2)Zr4Al8 cuboctahedra. All Rh(2)-Al(1) bond lengths are 2.72 Å. All Rh(2)-Al(2) bond lengths are 2.53 Å. In the second Rh site, Rh(1) is bonded in a body-centered cubic geometry to eight equivalent Al(1) atoms. All Rh(1)-Al(1) bond lengths are 2.57 Å. There are two inequivalent Al sites. In the first Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Zr(1) and three equivalent Rh(2) atoms. In the second Al site, Al(1) is bonded to three equivalent Zr(1), one Rh(1), and three equivalent Rh(2) atoms to form distorted AlZr3Rh4 tetrahedra that share corners with six equivalent Rh(2)Zr4Al8 cuboctahedra, corners with seven equivalent Al(1)Zr3Rh4 tetrahedra, edges with three equivalent Rh(2)Zr4Al8 cuboctahedra, edges with three equivalent Al(1)Zr3Rh4 tetrahedra, and faces with three equivalent Al(1)Zr3Rh4 tetrahedra.