K4ZnO3 crystallizes in the triclinic P-1 space group. There are eight inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to one O(1), one O(5), and one O(6) atom. In the second K site, K(2) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form a mixture of distorted edge and corner-sharing KO4 trigonal pyramids. In the third K site, K(3) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form a mixture of distorted edge and corner-sharing KO4 tetrahedra. In the fourth K site, K(4) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form a mixture of distorted edge and corner-sharing KO4 tetrahedra. In the fifth K site, K(5) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), one O(5), and one O(6) atom. In the sixth K site, K(6) is bonded in a 5-coordinate geometry to one Zn(2), one O(2), one O(3), one O(5), and one O(6) atom. In the seventh K site, K(7) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(6) atom. In the eighth K site, K(8) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. In the second Zn site, Zn(2) is bonded in a trigonal planar geometry to one K(6), one O(1), one O(2), and one O(3) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one K(1), one K(4), one K(5), one K(7), one K(8), and one Zn(2) atom. In the second O site, O(2) is bonded in a 7-coordinate geometry to one K(4), one K(5), one K(6), one K(7), two equivalent K(3), and one Zn(2) atom. In the third O site, O(3) is bonded in a 7-coordinate geometry to one K(3), one K(6), one K(7), one K(8), two equivalent K(4), and one Zn(2) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one K(5), one K(7), one K(8), two equivalent K(2), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one K(1), one K(2), one K(5), one K(6), one K(8), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a 7-coordinate geometry to one K(1), one K(2), one K(3), one K(5), one K(6), one K(7), and one Zn(1) atom.
K4ZnO3 crystallizes in the triclinic P-1 space group. There are eight inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to one O(1), one O(5), and one O(6) atom. The K(1)-O(1) bond length is 2.62 Å. The K(1)-O(5) bond length is 2.68 Å. The K(1)-O(6) bond length is 2.75 Å. In the second K site, K(2) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form a mixture of distorted edge and corner-sharing KO4 trigonal pyramids. The K(2)-O(5) bond length is 2.68 Å. The K(2)-O(6) bond length is 2.65 Å. There is one shorter (2.78 Å) and one longer (2.80 Å) K(2)-O(4) bond length. In the third K site, K(3) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form a mixture of distorted edge and corner-sharing KO4 tetrahedra. The K(3)-O(3) bond length is 2.81 Å. The K(3)-O(6) bond length is 2.64 Å. There is one shorter (2.65 Å) and one longer (2.70 Å) K(3)-O(2) bond length. In the fourth K site, K(4) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form a mixture of distorted edge and corner-sharing KO4 tetrahedra. The K(4)-O(1) bond length is 2.78 Å. The K(4)-O(2) bond length is 2.67 Å. There is one shorter (2.65 Å) and one longer (2.68 Å) K(4)-O(3) bond length. In the fifth K site, K(5) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), one O(5), and one O(6) atom. The K(5)-O(1) bond length is 2.71 Å. The K(5)-O(2) bond length is 2.79 Å. The K(5)-O(4) bond length is 2.66 Å. The K(5)-O(5) bond length is 2.68 Å. The K(5)-O(6) bond length is 3.23 Å. In the sixth K site, K(6) is bonded in a 5-coordinate geometry to one Zn(2), one O(2), one O(3), one O(5), and one O(6) atom. The K(6)-Zn(2) bond length is 3.26 Å. The K(6)-O(2) bond length is 3.12 Å. The K(6)-O(3) bond length is 2.58 Å. The K(6)-O(5) bond length is 2.96 Å. The K(6)-O(6) bond length is 2.59 Å. In the seventh K site, K(7) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(6) atom. The K(7)-O(1) bond length is 2.80 Å. The K(7)-O(2) bond length is 2.94 Å. The K(7)-O(3) bond length is 2.96 Å. The K(7)-O(4) bond length is 2.78 Å. The K(7)-O(6) bond length is 2.88 Å. In the eighth K site, K(8) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. The K(8)-O(1) bond length is 2.73 Å. The K(8)-O(3) bond length is 2.59 Å. The K(8)-O(4) bond length is 2.58 Å. The K(8)-O(5) bond length is 2.94 Å. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. The Zn(1)-O(4) bond length is 1.90 Å. The Zn(1)-O(5) bond length is 1.92 Å. The Zn(1)-O(6) bond length is 1.91 Å. In the second Zn site, Zn(2) is bonded in a trigonal planar geometry to one K(6), one O(1), one O(2), and one O(3) atom. The Zn(2)-O(1) bond length is 1.90 Å. The Zn(2)-O(2) bond length is 1.89 Å. The Zn(2)-O(3) bond length is 1.90 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one K(1), one K(4), one K(5), one K(7), one K(8), and one Zn(2) atom. In the second O site, O(2) is bonded in a 7-coordinate geometry to one K(4), one K(5), one K(6), one K(7), two equivalent K(3), and one Zn(2) atom. In the third O site, O(3) is bonded in a 7-coordinate geometry to one K(3), one K(6), one K(7), one K(8), two equivalent K(4), and one Zn(2) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one K(5), one K(7), one K(8), two equivalent K(2), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one K(1), one K(2), one K(5), one K(6), one K(8), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a 7-coordinate geometry to one K(1), one K(2), one K(3), one K(5), one K(6), one K(7), and one Zn(1) atom.