Na6BeO4 crystallizes in the hexagonal P6_3mc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(2) and three equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. Be(1) is bonded in a tetrahedral geometry to one O(2) and three equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 8-coordinate geometry to three equivalent Na(1), four equivalent Na(2), and one Be(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Na(1), three equivalent Na(2), and one Be(1) atom.
Na6BeO4 crystallizes in the hexagonal P6_3mc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(2) and three equivalent O(1) atoms. The Na(1)-O(2) bond length is 2.39 Å. There is one shorter (2.32 Å) and two longer (2.39 Å) Na(1)-O(1) bond lengths. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. The Na(2)-O(2) bond length is 2.46 Å. There are two shorter (2.38 Å) and two longer (2.53 Å) Na(2)-O(1) bond lengths. Be(1) is bonded in a tetrahedral geometry to one O(2) and three equivalent O(1) atoms. The Be(1)-O(2) bond length is 1.70 Å. All Be(1)-O(1) bond lengths are 1.76 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 8-coordinate geometry to three equivalent Na(1), four equivalent Na(2), and one Be(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Na(1), three equivalent Na(2), and one Be(1) atom.