K2Ce(NO3)6 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 10-coordinate geometry to one O(3), one O(4), one O(6), one O(7), one O(8), one O(9), two equivalent O(1), and two equivalent O(5) atoms. Ce(1) is bonded in a cuboctahedral geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(9) atoms. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(7) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(8) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(3) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Ce(1) and one N(2) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the sixth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1), one Ce(1), and one N(2) atom. In the seventh O site, O(6) is bonded in a single-bond geometry to one K(1) and one N(1) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the ninth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one K(1) and one N(2) atom.
K2Ce(NO3)6 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 10-coordinate geometry to one O(3), one O(4), one O(6), one O(7), one O(8), one O(9), two equivalent O(1), and two equivalent O(5) atoms. The K(1)-O(3) bond length is 3.05 Å. The K(1)-O(4) bond length is 3.10 Å. The K(1)-O(6) bond length is 2.89 Å. The K(1)-O(7) bond length is 2.83 Å. The K(1)-O(8) bond length is 2.77 Å. The K(1)-O(9) bond length is 3.17 Å. There is one shorter (2.76 Å) and one longer (2.95 Å) K(1)-O(1) bond length. There is one shorter (2.94 Å) and one longer (3.06 Å) K(1)-O(5) bond length. Ce(1) is bonded in a cuboctahedral geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(9) atoms. Both Ce(1)-O(2) bond lengths are 2.51 Å. Both Ce(1)-O(3) bond lengths are 2.52 Å. Both Ce(1)-O(4) bond lengths are 2.52 Å. Both Ce(1)-O(5) bond lengths are 2.56 Å. Both Ce(1)-O(7) bond lengths are 2.50 Å. Both Ce(1)-O(9) bond lengths are 2.53 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(7) atom. The N(1)-O(4) bond length is 1.27 Å. The N(1)-O(6) bond length is 1.21 Å. The N(1)-O(7) bond length is 1.28 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(8) atom. The N(2)-O(2) bond length is 1.26 Å. The N(2)-O(5) bond length is 1.29 Å. The N(2)-O(8) bond length is 1.22 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(9) atom. The N(3)-O(1) bond length is 1.22 Å. The N(3)-O(3) bond length is 1.28 Å. The N(3)-O(9) bond length is 1.27 Å. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(3) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Ce(1) and one N(2) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the sixth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1), one Ce(1), and one N(2) atom. In the seventh O site, O(6) is bonded in a single-bond geometry to one K(1) and one N(1) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the ninth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one K(1) and one N(2) atom.