Na(CoO2)3 crystallizes in the trigonal R32 space group. Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), and three equivalent O(3) atoms. Co(1) is bonded in a 5-coordinate geometry to one O(1), one O(4), and three equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Na(1) and three equivalent Co(1) atoms. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(1) and one O(4) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(1) and three equivalent Co(1) atoms. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to three equivalent Co(1), one O(2), and one O(4) atom.
Na(CoO2)3 crystallizes in the trigonal R32 space group. Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), and three equivalent O(3) atoms. The Na(1)-O(1) bond length is 1.54 Å. The Na(1)-O(2) bond length is 1.61 Å. All Na(1)-O(3) bond lengths are 1.84 Å. Co(1) is bonded in a 5-coordinate geometry to one O(1), one O(4), and three equivalent O(3) atoms. The Co(1)-O(1) bond length is 1.85 Å. The Co(1)-O(4) bond length is 1.73 Å. There are a spread of Co(1)-O(3) bond distances ranging from 1.77-1.85 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Na(1) and three equivalent Co(1) atoms. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(1) and one O(4) atom. The O(2)-O(4) bond length is 1.25 Å. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(1) and three equivalent Co(1) atoms. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to three equivalent Co(1), one O(2), and one O(4) atom. The O(4)-O(4) bond length is 1.52 Å.