K3NaUC3O11 crystallizes in the hexagonal P-62c space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Na(1) is bonded to two O(3,3) and three equivalent O(2) atoms to form NaO5 trigonal bipyramids that share corners with two equivalent U(1)O8 hexagonal bipyramids. U(1) is bonded to two O(3,3); three equivalent O(1); and three equivalent O(4) atoms to form distorted UO8 hexagonal bipyramids that share corners with two equivalent Na(1)O5 trigonal bipyramids. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(1), one Na(1), and one C(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Na(1) and one U(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(1) atom. In the fifth O site, O(3) is bonded in a linear geometry to one Na(1) and one U(1) atom.
K3NaUC3O11 crystallizes in the hexagonal P-62c space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Both K(1)-O(1) bond lengths are 2.82 Å. Both K(1)-O(2) bond lengths are 2.91 Å. Both K(1)-O(4) bond lengths are 2.76 Å. Na(1) is bonded to two O(3,3) and three equivalent O(2) atoms to form NaO5 trigonal bipyramids that share corners with two equivalent U(1)O8 hexagonal bipyramids. Both Na(1)-O(3,3) bond lengths are 2.32 Å. All Na(1)-O(2) bond lengths are 2.48 Å. U(1) is bonded to two O(3,3); three equivalent O(1); and three equivalent O(4) atoms to form distorted UO8 hexagonal bipyramids that share corners with two equivalent Na(1)O5 trigonal bipyramids. Both U(1)-O(3,3) bond lengths are 1.84 Å. All U(1)-O(1) bond lengths are 2.45 Å. All U(1)-O(4) bond lengths are 2.46 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(4) atom. The C(1)-O(1) bond length is 1.32 Å. The C(1)-O(2) bond length is 1.26 Å. The C(1)-O(4) bond length is 1.32 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent K(1), one Na(1), and one C(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Na(1) and one U(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1), one U(1), and one C(1) atom. In the fifth O site, O(3) is bonded in a linear geometry to one Na(1) and one U(1) atom.