KSnCPO7 crystallizes in the monoclinic P2_1 space group. K(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. Sn(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form SnO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. P(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with four equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-45°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1) and one C(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Sn(1), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Sn(1), and one C(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(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), 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 Sn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sn(1) and one P(1) atom.
KSnCPO7 crystallizes in the monoclinic P2_1 space group. K(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. The K(1)-O(1) bond length is 2.59 Å. The K(1)-O(2) bond length is 2.84 Å. The K(1)-O(3) bond length is 2.84 Å. The K(1)-O(5) bond length is 2.85 Å. Sn(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form SnO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. The Sn(1)-O(2) bond length is 2.09 Å. The Sn(1)-O(3) bond length is 2.10 Å. The Sn(1)-O(4) bond length is 2.06 Å. The Sn(1)-O(5) bond length is 2.10 Å. The Sn(1)-O(6) bond length is 2.06 Å. The Sn(1)-O(7) bond length is 2.07 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(2) bond length is 1.35 Å. The C(1)-O(3) bond length is 1.35 Å. P(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with four equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-45°. The P(1)-O(4) bond length is 1.55 Å. The P(1)-O(5) bond length is 1.54 Å. The P(1)-O(6) bond length is 1.54 Å. The P(1)-O(7) bond length is 1.56 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1) and one C(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Sn(1), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Sn(1), and one C(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(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), 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 Sn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sn(1) and one P(1) atom.