KTeO4 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(7), one O(8), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 3-coordinate geometry to one O(1), one O(3), one O(5), and one O(8) atom. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form edge-sharing TeO5 trigonal bipyramids. In the second Te site, Te(2) is bonded in a 5-coordinate geometry to one O(3), one O(5), one O(7), and two equivalent O(4) atoms. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Te(2) atom. In the second O site, O(6) is bonded in a single-bond geometry to one O(8) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one Te(1), and one Te(2) atom. In the fourth O site, O(8) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one O(6) atom. In the fifth O site, O(1) is bonded in a trigonal non-coplanar geometry to one K(1), one K(2), and one Te(1) atom. In the sixth O site, O(2) is bonded in a water-like geometry to two equivalent Te(1) atoms. In the seventh O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Te(1), and one Te(2) atom. In the eighth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Te(2) atoms.
KTeO4 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(7), one O(8), and two equivalent O(4) atoms. The K(1)-O(1) bond length is 2.76 Å. The K(1)-O(3) bond length is 2.93 Å. The K(1)-O(5) bond length is 2.99 Å. The K(1)-O(7) bond length is 3.04 Å. The K(1)-O(8) bond length is 3.45 Å. There is one shorter (2.76 Å) and one longer (3.00 Å) K(1)-O(4) bond length. In the second K site, K(2) is bonded in a 3-coordinate geometry to one O(1), one O(3), one O(5), and one O(8) atom. The K(2)-O(1) bond length is 2.67 Å. The K(2)-O(3) bond length is 2.72 Å. The K(2)-O(5) bond length is 2.57 Å. The K(2)-O(8) bond length is 3.26 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(3), one O(7), and two equivalent O(2) atoms to form edge-sharing TeO5 trigonal bipyramids. The Te(1)-O(1) bond length is 1.84 Å. The Te(1)-O(3) bond length is 1.92 Å. The Te(1)-O(7) bond length is 1.86 Å. There is one shorter (1.96 Å) and one longer (2.09 Å) Te(1)-O(2) bond length. In the second Te site, Te(2) is bonded in a 5-coordinate geometry to one O(3), one O(5), one O(7), and two equivalent O(4) atoms. The Te(2)-O(3) bond length is 2.31 Å. The Te(2)-O(5) bond length is 1.85 Å. The Te(2)-O(7) bond length is 2.61 Å. There is one shorter (2.00 Å) and one longer (2.11 Å) Te(2)-O(4) bond length. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Te(2) atom. In the second O site, O(6) is bonded in a single-bond geometry to one O(8) atom. The O(6)-O(8) bond length is 1.23 Å. In the third O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one Te(1), and one Te(2) atom. In the fourth O site, O(8) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one O(6) atom. In the fifth O site, O(1) is bonded in a trigonal non-coplanar geometry to one K(1), one K(2), and one Te(1) atom. In the sixth O site, O(2) is bonded in a water-like geometry to two equivalent Te(1) atoms. In the seventh O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Te(1), and one Te(2) atom. In the eighth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Te(2) atoms.