Li2NaBP2O8 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(7), one O(8), and two equivalent O(5) atoms. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(3), one O(4), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. In the second Li site, Li(2) is bonded in a rectangular see-saw-like geometry to one O(3), one O(8), and two equivalent O(4) atoms. B(1) is bonded to one O(1), one O(2), one O(5), and one O(7) atom to form BO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra and corners with two equivalent B(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra and corners with three equivalent Li(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Na(1), one B(1), and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one B(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(1), one Li(1), one Li(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Li(1), two equivalent Li(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Na(1), one B(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Li(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one B(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Li(2), and one P(1) atom.
Li2NaBP2O8 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(7), one O(8), and two equivalent O(5) atoms. The Na(1)-O(1) bond length is 2.83 Å. The Na(1)-O(2) bond length is 2.48 Å. The Na(1)-O(3) bond length is 2.48 Å. The Na(1)-O(7) bond length is 2.42 Å. The Na(1)-O(8) bond length is 2.38 Å. There is one shorter (2.47 Å) and one longer (2.95 Å) Na(1)-O(5) bond length. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(3), one O(4), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. The Li(1)-O(3) bond length is 1.98 Å. The Li(1)-O(4) bond length is 2.01 Å. There is one shorter (1.95 Å) and one longer (1.99 Å) Li(1)-O(6) bond length. In the second Li site, Li(2) is bonded in a rectangular see-saw-like geometry to one O(3), one O(8), and two equivalent O(4) atoms. The Li(2)-O(3) bond length is 2.03 Å. The Li(2)-O(8) bond length is 1.90 Å. There is one shorter (1.99 Å) and one longer (2.09 Å) Li(2)-O(4) bond length. B(1) is bonded to one O(1), one O(2), one O(5), and one O(7) atom to form BO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The B(1)-O(1) bond length is 1.47 Å. The B(1)-O(2) bond length is 1.48 Å. The B(1)-O(5) bond length is 1.50 Å. The B(1)-O(7) bond length is 1.48 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra and corners with two equivalent B(1)O4 tetrahedra. The P(1)-O(2) bond length is 1.59 Å. The P(1)-O(4) bond length is 1.53 Å. The P(1)-O(7) bond length is 1.59 Å. The P(1)-O(8) bond length is 1.51 Å. In the second P site, P(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra and corners with three equivalent Li(1)O4 tetrahedra. The P(2)-O(1) bond length is 1.58 Å. The P(2)-O(3) bond length is 1.53 Å. The P(2)-O(5) bond length is 1.60 Å. The P(2)-O(6) bond length is 1.51 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Na(1), one B(1), and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one B(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(1), one Li(1), one Li(2), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Li(1), two equivalent Li(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Na(1), one B(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Li(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Na(1), one B(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(1), one Li(2), and one P(1) atom.