Na3La(BO3)2 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one O(3), one O(5), and one O(6) atom. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the third Na site, Na(3) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. La(1) is bonded to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of distorted edge and corner-sharing LaO8 hexagonal bipyramids. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(6) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one La(1), and one B(2) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to one Na(2), one Na(3), two equivalent La(1), and one B(1) atom. In the third O site, O(5) is bonded in a distorted single-bond geometry to one Na(1), one Na(2), one Na(3), one La(1), and one B(2) atom. In the fourth O site, O(6) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one La(1), and one B(1) atom. In the fifth O site, O(1) is bonded to one Na(2), one Na(3), two equivalent La(1), and one B(2) atom to form distorted corner-sharing ONa2La2B trigonal bipyramids. In the sixth O site, O(2) is bonded in a distorted single-bond geometry to one Na(2), two equivalent Na(3), one La(1), and one B(1) atom.
Na3La(BO3)2 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one O(3), one O(5), and one O(6) atom. The Na(1)-O(3) bond length is 2.40 Å. The Na(1)-O(5) bond length is 2.33 Å. The Na(1)-O(6) bond length is 2.37 Å. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Na(2)-O(1) bond length is 2.33 Å. The Na(2)-O(2) bond length is 2.52 Å. The Na(2)-O(3) bond length is 2.29 Å. The Na(2)-O(4) bond length is 2.51 Å. The Na(2)-O(5) bond length is 2.73 Å. The Na(2)-O(6) bond length is 2.52 Å. In the third Na site, Na(3) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms. The Na(3)-O(1) bond length is 2.52 Å. The Na(3)-O(3) bond length is 2.72 Å. The Na(3)-O(4) bond length is 2.60 Å. The Na(3)-O(5) bond length is 2.50 Å. The Na(3)-O(6) bond length is 2.41 Å. There is one shorter (2.57 Å) and one longer (2.61 Å) Na(3)-O(2) bond length. La(1) is bonded to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of distorted edge and corner-sharing LaO8 hexagonal bipyramids. The La(1)-O(2) bond length is 2.43 Å. The La(1)-O(3) bond length is 2.50 Å. The La(1)-O(5) bond length is 2.51 Å. The La(1)-O(6) bond length is 2.51 Å. There is one shorter (2.55 Å) and one longer (2.57 Å) La(1)-O(1) bond length. There is one shorter (2.55 Å) and one longer (2.58 Å) La(1)-O(4) bond length. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(6) atom. The B(1)-O(2) bond length is 1.37 Å. The B(1)-O(4) bond length is 1.41 Å. The B(1)-O(6) bond length is 1.40 Å. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(5) atom. The B(2)-O(1) bond length is 1.41 Å. The B(2)-O(3) bond length is 1.39 Å. The B(2)-O(5) bond length is 1.39 Å. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one La(1), and one B(2) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to one Na(2), one Na(3), two equivalent La(1), and one B(1) atom. In the third O site, O(5) is bonded in a distorted single-bond geometry to one Na(1), one Na(2), one Na(3), one La(1), and one B(2) atom. In the fourth O site, O(6) is bonded in a 5-coordinate geometry to one Na(1), one Na(2), one Na(3), one La(1), and one B(1) atom. In the fifth O site, O(1) is bonded to one Na(2), one Na(3), two equivalent La(1), and one B(2) atom to form distorted corner-sharing ONa2La2B trigonal bipyramids. In the sixth O site, O(2) is bonded in a distorted single-bond geometry to one Na(2), two equivalent Na(3), one La(1), and one B(1) atom.