Pr(RhAs)2 crystallizes in the tetragonal P4/nmm space group. Pr(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 Pr(1) and four equivalent As(2) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to four equivalent Pr(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 Pr(1) and four equivalent Rh(2) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to four equivalent Pr(1), one Rh(2), and four equivalent Rh(1) atoms.
Pr(RhAs)2 crystallizes in the tetragonal P4/nmm space group. Pr(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 Pr(1)-Rh(1) bond lengths are 3.31 Å. All Pr(1)-Rh(2) bond lengths are 3.30 Å. All Pr(1)-As(1) bond lengths are 3.25 Å. All Pr(1)-As(2) bond lengths are 3.27 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to four equivalent Pr(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 Pr(1), one As(2), and four equivalent As(1) atoms. The Rh(2)-As(2) bond length is 2.45 Å. All Rh(2)-As(1) bond lengths are 2.45 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent Rh(2) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to four equivalent Pr(1), one Rh(2), and four equivalent Rh(1) atoms.