K8MgTi2O8 crystallizes in the monoclinic C2/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(3) atoms. In the third K site, K(3) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. Mg(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. Ti(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(3), one Mg(1), and one Ti(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent K(2), two equivalent K(3), and one Ti(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Ti(1) atom.
K8MgTi2O8 crystallizes in the monoclinic C2/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(3) atoms. Both K(1)-O(1) bond lengths are 2.66 Å. Both K(1)-O(3) bond lengths are 2.81 Å. In the second K site, K(2) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(3) atoms. Both K(2)-O(2) bond lengths are 2.75 Å. Both K(2)-O(3) bond lengths are 2.91 Å. In the third K site, K(3) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. The K(3)-O(2) bond length is 2.74 Å. The K(3)-O(3) bond length is 2.89 Å. There is one shorter (2.77 Å) and one longer (2.95 Å) K(3)-O(1) bond length. Mg(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Mg(1)-O(1) bond lengths are 2.16 Å. Ti(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. The Ti(1)-O(2) bond length is 1.85 Å. The Ti(1)-O(3) bond length is 1.85 Å. Both Ti(1)-O(1) bond lengths are 1.85 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(3), one Mg(1), and one Ti(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent K(2), two equivalent K(3), and one Ti(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Ti(1) atom.