Pr(WO4)2Tl crystallizes in the monoclinic C2/c space group. The structure consists of four 7440-28-0 atoms inside a Pr(WO4)2 framework. In the Pr(WO4)2 framework, Pr(1) is bonded in a 8-coordinate geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. W(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 42°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Pr(1) and one W(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Pr(1) and one W(1) atom.
Pr(WO4)2Tl crystallizes in the monoclinic C2/c space group. The structure consists of four 7440-28-0 atoms inside a Pr(WO4)2 framework. In the Pr(WO4)2 framework, Pr(1) is bonded in a 8-coordinate geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. Both Pr(1)-O(3) bond lengths are 2.42 Å. Both Pr(1)-O(4) bond lengths are 2.41 Å. There are two shorter (2.45 Å) and two longer (2.85 Å) Pr(1)-O(2) bond lengths. W(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 42°. The W(1)-O(2) bond length is 1.86 Å. The W(1)-O(4) bond length is 1.83 Å. There is one shorter (1.87 Å) and one longer (2.19 Å) W(1)-O(1) bond length. There is one shorter (2.00 Å) and one longer (2.13 Å) W(1)-O(3) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Pr(1) and one W(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Pr(1) and one W(1) atom.