PrO2Br crystallizes in the monoclinic P2_1/m space group. Pr(1) is bonded in a 10-coordinate geometry to three equivalent O(2), four equivalent O(1), and three equivalent Br(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to four equivalent Pr(1) and one O(2) atom. In the second O site, O(2) is bonded to three equivalent Pr(1) and one O(1) atom to form a mixture of corner and edge-sharing OPr3O trigonal pyramids. Br(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pr(1) atoms.
PrO2Br crystallizes in the monoclinic P2_1/m space group. Pr(1) is bonded in a 10-coordinate geometry to three equivalent O(2), four equivalent O(1), and three equivalent Br(1) atoms. There are two shorter (2.42 Å) and one longer (2.45 Å) Pr(1)-O(2) bond length. There are a spread of Pr(1)-O(1) bond distances ranging from 2.59-2.76 Å. There is one shorter (3.06 Å) and two longer (3.22 Å) Pr(1)-Br(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to four equivalent Pr(1) and one O(2) atom. The O(1)-O(2) bond length is 1.50 Å. In the second O site, O(2) is bonded to three equivalent Pr(1) and one O(1) atom to form a mixture of corner and edge-sharing OPr3O trigonal pyramids. Br(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pr(1) atoms.