Pr2ZnAs4 crystallizes in the tetragonal P-4m2 space group. Pr(1) is bonded in a 10-coordinate geometry to two equivalent Zn(1), two equivalent As(2), two equivalent As(3), and four equivalent As(1) atoms. Zn(1) is bonded to four equivalent Pr(1) and four equivalent As(1) atoms to form distorted edge-sharing ZnPr4As4 tetrahedra. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 6-coordinate geometry to four equivalent Pr(1) and two equivalent Zn(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent As(3) atoms. In the third As site, As(3) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent As(2) atoms.
Pr2ZnAs4 crystallizes in the tetragonal P-4m2 space group. Pr(1) is bonded in a 10-coordinate geometry to two equivalent Zn(1), two equivalent As(2), two equivalent As(3), and four equivalent As(1) atoms. Both Pr(1)-Zn(1) bond lengths are 3.34 Å. Both Pr(1)-As(2) bond lengths are 3.20 Å. Both Pr(1)-As(3) bond lengths are 3.20 Å. All Pr(1)-As(1) bond lengths are 3.04 Å. Zn(1) is bonded to four equivalent Pr(1) and four equivalent As(1) atoms to form distorted edge-sharing ZnPr4As4 tetrahedra. All Zn(1)-As(1) bond lengths are 2.53 Å. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 6-coordinate geometry to four equivalent Pr(1) and two equivalent Zn(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent As(3) atoms. All As(2)-As(3) bond lengths are 2.82 Å. In the third As site, As(3) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent As(2) atoms.