Na3Sc(BO3)2 crystallizes in the monoclinic P2_1/c 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), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to two equivalent O(3), three equivalent O(1), and three equivalent O(2) atoms. Sc(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Na(1), three equivalent Na(2), one Sc(1), and one B(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(1), three equivalent Na(2), one Sc(1), and one B(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(2), one Sc(1), and one B(1) atom.
Na3Sc(BO3)2 crystallizes in the monoclinic P2_1/c 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), two equivalent O(2), and two equivalent O(3) atoms. Both Na(1)-O(1) bond lengths are 2.37 Å. Both Na(1)-O(2) bond lengths are 2.47 Å. Both Na(1)-O(3) bond lengths are 2.40 Å. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to two equivalent O(3), three equivalent O(1), and three equivalent O(2) atoms. There is one shorter (2.52 Å) and one longer (2.65 Å) Na(2)-O(3) bond length. There are a spread of Na(2)-O(1) bond distances ranging from 2.52-2.87 Å. There are a spread of Na(2)-O(2) bond distances ranging from 2.49-2.86 Å. Sc(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Both Sc(1)-O(1) bond lengths are 2.15 Å. Both Sc(1)-O(2) bond lengths are 2.10 Å. Both Sc(1)-O(3) bond lengths are 2.10 Å. 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 1.39 Å. The B(1)-O(2) bond length is 1.38 Å. The B(1)-O(3) bond length is 1.39 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Na(1), three equivalent Na(2), one Sc(1), and one B(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(1), three equivalent Na(2), one Sc(1), and one B(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(2), one Sc(1), and one B(1) atom.