Na3Ce2C4O12F crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 9-coordinate geometry to nine equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. Ce(1) is bonded in a 10-coordinate geometry to three equivalent O(1), six equivalent O(2), and one F(1) atom. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. In the second C site, C(2) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Na(1), one Ce(1), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(2), two equivalent Ce(1), and one C(2) atom. F(1) is bonded in a linear geometry to two equivalent Ce(1) atoms.
Na3Ce2C4O12F crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 9-coordinate geometry to nine equivalent O(1) atoms. There are three shorter (2.56 Å) and six longer (2.72 Å) Na(1)-O(1) bond lengths. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. All Na(2)-O(2) bond lengths are 2.38 Å. Ce(1) is bonded in a 10-coordinate geometry to three equivalent O(1), six equivalent O(2), and one F(1) atom. All Ce(1)-O(1) bond lengths are 2.52 Å. All Ce(1)-O(2) bond lengths are 2.66 Å. The Ce(1)-F(1) bond length is 2.40 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. All C(1)-O(1) bond lengths are 1.30 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. All C(2)-O(2) bond lengths are 1.29 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Na(1), one Ce(1), and one C(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(2), two equivalent Ce(1), and one C(2) atom. F(1) is bonded in a linear geometry to two equivalent Ce(1) atoms.