K2MoO2F5 crystallizes in the monoclinic C2 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(2), one F(3), one F(4), and one F(5) atom. In the second K site, K(2) is bonded in a 10-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), two equivalent F(4), and two equivalent F(5) atoms. In the third K site, K(3) is bonded in a 12-coordinate geometry to two equivalent F(2), two equivalent F(3), two equivalent F(4), two equivalent F(5), and four equivalent F(1) atoms. Mo(1) is bonded in an octahedral geometry to one O(1), one F(1), one F(2), one F(3), one F(4), and one F(5) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one Mo(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent K(1) atoms. In the third O site, O(3) is bonded in a water-like geometry to two equivalent K(1) atoms. There are five inequivalent F sites. In the first F site, F(1) is bonded in a 1-coordinate geometry to one K(1), one K(2), two equivalent K(3), and one Mo(1) atom. In the second F site, F(2) is bonded to one K(1), one K(2), one K(3), and one Mo(1) atom to form distorted edge-sharing FK3Mo tetrahedra. In the third F site, F(3) is bonded in a 4-coordinate geometry to one K(1), one K(2), one K(3), and one Mo(1) atom. In the fourth F site, F(4) is bonded in a 4-coordinate geometry to one K(1), one K(2), one K(3), and one Mo(1) atom. In the fifth F site, F(5) is bonded in a 4-coordinate geometry to one K(1), one K(2), one K(3), and one Mo(1) atom.
K2MoO2F5 crystallizes in the monoclinic C2 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(2), one F(3), one F(4), and one F(5) atom. The K(1)-O(1) bond length is 2.83 Å. The K(1)-O(2) bond length is 2.89 Å. The K(1)-O(3) bond length is 3.33 Å. The K(1)-F(1) bond length is 2.98 Å. The K(1)-F(2) bond length is 2.67 Å. The K(1)-F(3) bond length is 2.63 Å. The K(1)-F(4) bond length is 2.64 Å. The K(1)-F(5) bond length is 2.62 Å. In the second K site, K(2) is bonded in a 10-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), two equivalent F(4), and two equivalent F(5) atoms. Both K(2)-F(1) bond lengths are 2.87 Å. Both K(2)-F(2) bond lengths are 2.90 Å. Both K(2)-F(3) bond lengths are 3.00 Å. Both K(2)-F(4) bond lengths are 2.89 Å. Both K(2)-F(5) bond lengths are 3.06 Å. In the third K site, K(3) is bonded in a 12-coordinate geometry to two equivalent F(2), two equivalent F(3), two equivalent F(4), two equivalent F(5), and four equivalent F(1) atoms. Both K(3)-F(2) bond lengths are 2.88 Å. Both K(3)-F(3) bond lengths are 3.10 Å. Both K(3)-F(4) bond lengths are 2.83 Å. Both K(3)-F(5) bond lengths are 2.98 Å. There are two shorter (3.05 Å) and two longer (3.26 Å) K(3)-F(1) bond lengths. Mo(1) is bonded in an octahedral geometry to one O(1), one F(1), one F(2), one F(3), one F(4), and one F(5) atom. The Mo(1)-O(1) bond length is 1.73 Å. The Mo(1)-F(1) bond length is 2.07 Å. The Mo(1)-F(2) bond length is 2.00 Å. The Mo(1)-F(3) bond length is 1.99 Å. The Mo(1)-F(4) bond length is 2.00 Å. The Mo(1)-F(5) bond length is 1.99 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one Mo(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent K(1) atoms. In the third O site, O(3) is bonded in a water-like geometry to two equivalent K(1) atoms. There are five inequivalent F sites. In the first F site, F(1) is bonded in a 1-coordinate geometry to one K(1), one K(2), two equivalent K(3), and one Mo(1) atom. In the second F site, F(2) is bonded to one K(1), one K(2), one K(3), and one Mo(1) atom to form distorted edge-sharing FK3Mo tetrahedra. In the third F site, F(3) is bonded in a 4-coordinate geometry to one K(1), one K(2), one K(3), and one Mo(1) atom. In the fourth F site, F(4) is bonded in a 4-coordinate geometry to one K(1), one K(2), one K(3), and one Mo(1) atom. In the fifth F site, F(5) is bonded in a 4-coordinate geometry to one K(1), one K(2), one K(3), and one Mo(1) atom.