BiPO5 crystallizes in the orthorhombic Fdd2 space group. Bi(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms to form BiO6 octahedra that share corners with two equivalent Bi(1)O6 octahedra and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 55°. P(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with four equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-56°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. In the second O site, O(3) is bonded in a bent 120 degrees geometry to one Bi(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Bi(1) and one P(1) atom.
BiPO5 crystallizes in the orthorhombic Fdd2 space group. Bi(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms to form BiO6 octahedra that share corners with two equivalent Bi(1)O6 octahedra and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 55°. The Bi(1)-O(1) bond length is 2.23 Å. The Bi(1)-O(3) bond length is 2.20 Å. The Bi(1)-O(4) bond length is 2.23 Å. The Bi(1)-O(5) bond length is 2.20 Å. Both Bi(1)-O(2) bond lengths are 2.09 Å. P(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with four equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-56°. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(3) bond length is 1.56 Å. The P(1)-O(4) bond length is 1.55 Å. The P(1)-O(5) bond length is 1.57 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. In the second O site, O(3) is bonded in a bent 120 degrees geometry to one Bi(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Bi(1) and one P(1) atom.