KAlO crystallizes in the monoclinic Cc space group. There are two 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(2) atoms. In the second K site, K(2) is bonded in a 2-coordinate geometry to one O(1) and one O(2) atom. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a water-like geometry to one O(1) and one O(2) atom. In the second Al site, Al(2) is bonded in a water-like geometry to one O(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one K(2), two equivalent K(1), one Al(1), and one Al(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(2), two equivalent K(1), one Al(1), and one Al(2) atom.
KAlO crystallizes in the monoclinic Cc space group. There are two 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(2) atoms. There is one shorter (2.90 Å) and one longer (3.18 Å) K(1)-O(1) bond length. There is one shorter (3.02 Å) and one longer (3.05 Å) K(1)-O(2) bond length. In the second K site, K(2) is bonded in a 2-coordinate geometry to one O(1) and one O(2) atom. The K(2)-O(1) bond length is 3.00 Å. The K(2)-O(2) bond length is 2.87 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a water-like geometry to one O(1) and one O(2) atom. The Al(1)-O(1) bond length is 1.81 Å. The Al(1)-O(2) bond length is 1.80 Å. In the second Al site, Al(2) is bonded in a water-like geometry to one O(1) and one O(2) atom. The Al(2)-O(1) bond length is 1.81 Å. The Al(2)-O(2) bond length is 1.80 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one K(2), two equivalent K(1), one Al(1), and one Al(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(2), two equivalent K(1), one Al(1), and one Al(2) atom.