PWO5 crystallizes in the orthorhombic Pna2_1 space group. W(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 7°. P(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-26°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a linear geometry to one W(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one P(1) atom.
PWO5 crystallizes in the orthorhombic Pna2_1 space group. W(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 7°. The W(1)-O(2) bond length is 2.00 Å. The W(1)-O(3) bond length is 1.98 Å. The W(1)-O(4) bond length is 1.98 Å. The W(1)-O(5) bond length is 1.99 Å. Both W(1)-O(1) bond lengths are 1.86 Å. P(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-26°. The P(1)-O(2) bond length is 1.52 Å. The P(1)-O(3) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.52 Å. The P(1)-O(5) bond length is 1.52 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a linear geometry to one W(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one P(1) atom.