PrZn(SbO3)2 crystallizes in the orthorhombic Pmn2_1 space group. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), and four equivalent O(3) atoms. Zn(1) is bonded in a distorted trigonal planar geometry to one O(4) and two equivalent O(3) atoms. Sb(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted corner-sharing SbO6 square pyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Pr(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Pr(1) and two equivalent Sb(1) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Pr(1), one Zn(1), and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal pyramidal geometry to one Pr(1), one Zn(1), and two equivalent Sb(1) atoms.
PrZn(SbO3)2 crystallizes in the orthorhombic Pmn2_1 space group. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), and four equivalent O(3) atoms. The Pr(1)-O(1) bond length is 2.36 Å. The Pr(1)-O(4) bond length is 2.51 Å. Both Pr(1)-O(2) bond lengths are 2.43 Å. There are two shorter (2.63 Å) and two longer (2.96 Å) Pr(1)-O(3) bond lengths. Zn(1) is bonded in a distorted trigonal planar geometry to one O(4) and two equivalent O(3) atoms. The Zn(1)-O(4) bond length is 1.94 Å. Both Zn(1)-O(3) bond lengths are 1.98 Å. Sb(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted corner-sharing SbO6 square pyramids. The Sb(1)-O(1) bond length is 2.20 Å. The Sb(1)-O(4) bond length is 2.28 Å. There is one shorter (2.01 Å) and one longer (2.26 Å) Sb(1)-O(2) bond length. There is one shorter (2.17 Å) and one longer (2.75 Å) Sb(1)-O(3) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Pr(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Pr(1) and two equivalent Sb(1) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Pr(1), one Zn(1), and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal pyramidal geometry to one Pr(1), one Zn(1), and two equivalent Sb(1) atoms.