KVSO9 crystallizes in the monoclinic P2_1 space group. K(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. V(1) is bonded in a 5-coordinate geometry to one O(5), one O(6), one O(7), one O(8), and one O(9) atom. S(1) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one O(2) and one O(6) atom. In the second O site, O(2) is bonded in a single-bond geometry to one O(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one K(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(1), one V(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one V(1) and one O(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one K(1), one V(1), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one K(1) and one V(1) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one K(1) and one V(1) atom.
KVSO9 crystallizes in the monoclinic P2_1 space group. K(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. The K(1)-O(3) bond length is 2.83 Å. The K(1)-O(4) bond length is 2.70 Å. The K(1)-O(5) bond length is 2.97 Å. The K(1)-O(7) bond length is 3.05 Å. The K(1)-O(8) bond length is 2.75 Å. The K(1)-O(9) bond length is 3.30 Å. V(1) is bonded in a 5-coordinate geometry to one O(5), one O(6), one O(7), one O(8), and one O(9) atom. The V(1)-O(5) bond length is 2.00 Å. The V(1)-O(6) bond length is 2.30 Å. The V(1)-O(7) bond length is 1.97 Å. The V(1)-O(8) bond length is 1.65 Å. The V(1)-O(9) bond length is 1.63 Å. S(1) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(7) atom. The S(1)-O(3) bond length is 1.45 Å. The S(1)-O(4) bond length is 1.45 Å. The S(1)-O(5) bond length is 1.55 Å. The S(1)-O(7) bond length is 1.55 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one O(2) and one O(6) atom. The O(1)-O(2) bond length is 1.26 Å. The O(1)-O(6) bond length is 1.34 Å. In the second O site, O(2) is bonded in a single-bond geometry to one O(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one K(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(1), one V(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one V(1) and one O(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one K(1), one V(1), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one K(1) and one V(1) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one K(1) and one V(1) atom.