Ce(RhAs)2 crystallizes in the tetragonal P4/nmm space group. Ce(1) is bonded in a 16-coordinate geometry to four equivalent Rh(1), four equivalent Rh(2), four equivalent As(1), and four equivalent As(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to four equivalent Ce(1) and four equivalent As(2) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one As(2), and four equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Ce(1) and four equivalent Rh(2) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one Rh(2), and four equivalent Rh(1) atoms.
Ce(RhAs)2 crystallizes in the tetragonal P4/nmm space group. Ce(1) is bonded in a 16-coordinate geometry to four equivalent Rh(1), four equivalent Rh(2), four equivalent As(1), and four equivalent As(2) atoms. All Ce(1)-Rh(1) bond lengths are 3.30 Å. All Ce(1)-Rh(2) bond lengths are 3.29 Å. All Ce(1)-As(1) bond lengths are 3.24 Å. All Ce(1)-As(2) bond lengths are 3.25 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to four equivalent Ce(1) and four equivalent As(2) atoms. All Rh(1)-As(2) bond lengths are 2.54 Å. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one As(2), and four equivalent As(1) atoms. The Rh(2)-As(2) bond length is 2.42 Å. All Rh(2)-As(1) bond lengths are 2.44 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Ce(1) and four equivalent Rh(2) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one Rh(2), and four equivalent Rh(1) atoms.