K3(MoO3)10 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(10), and four equivalent O(8) atoms. In the second K site, K(2) is bonded in a distorted pentagonal bipyramidal geometry to one O(2), two equivalent O(10), two equivalent O(8), and two equivalent O(9) atoms. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and two equivalent O(9) atoms. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to one O(4), one O(5), one O(8), one O(9), and two equivalent O(11) atoms. In the third Mo site, Mo(3) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(11), one O(6), one O(7), and one O(9) atom. There are eleven inequivalent O sites. In the first O site, O(4) is bonded in a linear geometry to two equivalent Mo(2) atoms. In the second O site, O(5) is bonded in a distorted T-shaped geometry to one Mo(1) and two equivalent Mo(2) atoms. In the third O site, O(6) is bonded in a 3-coordinate geometry to one Mo(1) and two equivalent Mo(3) atoms. In the fourth O site, O(7) is bonded in a linear geometry to two equivalent Mo(3) atoms. In the fifth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one Mo(2) atom. In the sixth O site, O(9) is bonded to one K(2), one Mo(1), one Mo(2), and one Mo(3) atom to form distorted corner-sharing OKMo3 tetrahedra. In the seventh O site, O(10) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one Mo(3) atom. In the eighth O site, O(11) is bonded in a 3-coordinate geometry to one Mo(3) and two equivalent Mo(2) atoms. In the ninth O site, O(1) is bonded in a linear geometry to two equivalent Mo(3) atoms. In the tenth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one K(2) and one Mo(1) atom. In the eleventh O site, O(3) is bonded in a single-bond geometry to one K(1) and one Mo(1) atom.
K3(MoO3)10 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(10), and four equivalent O(8) atoms. Both K(1)-O(3) bond lengths are 3.05 Å. All K(1)-O(10) bond lengths are 2.97 Å. All K(1)-O(8) bond lengths are 3.38 Å. In the second K site, K(2) is bonded in a distorted pentagonal bipyramidal geometry to one O(2), two equivalent O(10), two equivalent O(8), and two equivalent O(9) atoms. The K(2)-O(2) bond length is 2.69 Å. Both K(2)-O(10) bond lengths are 3.03 Å. Both K(2)-O(8) bond lengths are 2.93 Å. Both K(2)-O(9) bond lengths are 2.95 Å. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and two equivalent O(9) atoms. The Mo(1)-O(2) bond length is 1.74 Å. The Mo(1)-O(3) bond length is 1.73 Å. The Mo(1)-O(5) bond length is 2.32 Å. The Mo(1)-O(6) bond length is 2.34 Å. Both Mo(1)-O(9) bond lengths are 1.99 Å. In the second Mo site, Mo(2) is bonded in a 6-coordinate geometry to one O(4), one O(5), one O(8), one O(9), and two equivalent O(11) atoms. The Mo(2)-O(4) bond length is 1.90 Å. The Mo(2)-O(5) bond length is 1.99 Å. The Mo(2)-O(8) bond length is 1.73 Å. The Mo(2)-O(9) bond length is 2.08 Å. There is one shorter (1.96 Å) and one longer (2.35 Å) Mo(2)-O(11) bond length. In the third Mo site, Mo(3) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(11), one O(6), one O(7), and one O(9) atom. The Mo(3)-O(1) bond length is 1.92 Å. The Mo(3)-O(10) bond length is 1.72 Å. The Mo(3)-O(11) bond length is 1.99 Å. The Mo(3)-O(6) bond length is 2.00 Å. The Mo(3)-O(7) bond length is 1.94 Å. The Mo(3)-O(9) bond length is 2.43 Å. There are eleven inequivalent O sites. In the first O site, O(4) is bonded in a linear geometry to two equivalent Mo(2) atoms. In the second O site, O(5) is bonded in a distorted T-shaped geometry to one Mo(1) and two equivalent Mo(2) atoms. In the third O site, O(6) is bonded in a 3-coordinate geometry to one Mo(1) and two equivalent Mo(3) atoms. In the fourth O site, O(7) is bonded in a linear geometry to two equivalent Mo(3) atoms. In the fifth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one Mo(2) atom. In the sixth O site, O(9) is bonded to one K(2), one Mo(1), one Mo(2), and one Mo(3) atom to form distorted corner-sharing OKMo3 tetrahedra. In the seventh O site, O(10) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one Mo(3) atom. In the eighth O site, O(11) is bonded in a 3-coordinate geometry to one Mo(3) and two equivalent Mo(2) atoms. In the ninth O site, O(1) is bonded in a linear geometry to two equivalent Mo(3) atoms. In the tenth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one K(2) and one Mo(1) atom. In the eleventh O site, O(3) is bonded in a single-bond geometry to one K(1) and one Mo(1) atom.