Na2TeO5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. Te(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(2) and two equivalent Na(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one Na(2), and one Te(1) atom.
Na2TeO5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Both Na(1)-O(1) bond lengths are 2.47 Å. All Na(1)-O(2) bond lengths are 2.37 Å. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. The Na(2)-O(1) bond length is 2.53 Å. All Na(2)-O(2) bond lengths are 2.37 Å. Te(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. All Te(1)-O(2) bond lengths are 1.98 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(2) and two equivalent Na(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one Na(2), and one Te(1) atom.