KC(NO2)3 crystallizes in the tetragonal I-42d space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. C(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one O(1), and one O(3) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(1) and two equivalent O(2) atoms. 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 N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(1) atom.
KC(NO2)3 crystallizes in the tetragonal I-42d space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. Both K(1)-O(1) bond lengths are 2.97 Å. There are two shorter (2.83 Å) and two longer (3.01 Å) K(1)-O(2) bond lengths. There are two shorter (3.02 Å) and two longer (3.08 Å) K(1)-O(3) bond lengths. C(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. The C(1)-N(2) bond length is 1.40 Å. Both C(1)-N(1) bond lengths are 1.42 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one O(1), and one O(3) atom. The N(1)-O(1) bond length is 1.25 Å. The N(1)-O(3) bond length is 1.25 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(1) and two equivalent O(2) atoms. Both N(2)-O(2) bond lengths are 1.26 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 N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(1) atom.