Na2BHO3 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 7-coordinate geometry to two equivalent H(1), two equivalent O(3), and three equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to two equivalent H(1), one O(3), two equivalent O(2), and three equivalent O(1) atoms. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. H(1) is bonded in a distorted linear geometry to two equivalent Na(1), two equivalent Na(2), one O(1), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to three equivalent Na(2), one B(1), and one H(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Na(2), three equivalent Na(1), and one B(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(2), two equivalent Na(1), one B(1), and one H(1) atom.
Na2BHO3 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 7-coordinate geometry to two equivalent H(1), two equivalent O(3), and three equivalent O(2) atoms. Both Na(1)-H(1) bond lengths are 2.45 Å. Both Na(1)-O(3) bond lengths are 2.33 Å. There is one shorter (2.30 Å) and two longer (2.49 Å) Na(1)-O(2) bond lengths. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to two equivalent H(1), one O(3), two equivalent O(2), and three equivalent O(1) atoms. Both Na(2)-H(1) bond lengths are 2.57 Å. The Na(2)-O(3) bond length is 2.37 Å. Both Na(2)-O(2) bond lengths are 2.57 Å. There are two shorter (2.55 Å) and one longer (2.64 Å) Na(2)-O(1) bond length. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The B(1)-O(1) bond length is 1.45 Å. The B(1)-O(2) bond length is 1.37 Å. The B(1)-O(3) bond length is 1.37 Å. H(1) is bonded in a distorted linear geometry to two equivalent Na(1), two equivalent Na(2), one O(1), and one O(3) atom. The H(1)-O(1) bond length is 1.04 Å. The H(1)-O(3) bond length is 1.54 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to three equivalent Na(2), one B(1), and one H(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Na(2), three equivalent Na(1), and one B(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(2), two equivalent Na(1), one B(1), and one H(1) atom.