SnOP2O5 crystallizes in the monoclinic P2_1/c space group. Sn(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form SnO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Sn(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Sn(1)O4 tetrahedra and corners with two equivalent P(1)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Sn(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom.
SnOP2O5 crystallizes in the monoclinic P2_1/c space group. Sn(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form SnO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The Sn(1)-O(1) bond length is 2.38 Å. The Sn(1)-O(3) bond length is 2.31 Å. The Sn(1)-O(4) bond length is 2.47 Å. The Sn(1)-O(5) bond length is 2.26 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Sn(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The P(1)-O(2) bond length is 1.62 Å. The P(1)-O(3) bond length is 1.51 Å. The P(1)-O(5) bond length is 1.52 Å. The P(1)-O(6) bond length is 1.59 Å. In the second P site, P(2) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent Sn(1)O4 tetrahedra and corners with two equivalent P(1)O4 tetrahedra. The P(2)-O(1) bond length is 1.50 Å. The P(2)-O(2) bond length is 1.63 Å. The P(2)-O(4) bond length is 1.50 Å. The P(2)-O(6) bond length is 1.63 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Sn(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom.