Na4Al3Si3NO14 crystallizes in the triclinic P1 space group. There are eight inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one N(1), one O(12), one O(25), one O(3), one O(4), and one O(6) atom. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one N(1), one O(13), one O(26), one O(27), one O(5), and one O(7) atom. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one N(1), one O(1), one O(10), and one O(8) atom. In the fourth Na site, Na(4) is bonded in a 3-coordinate geometry to one O(11), one O(15), one O(2), and one O(9) atom. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one O(16), one O(18), one O(22), and one O(25) atom. In the sixth Na site, Na(6) is bonded to one O(13), one O(17), one O(19), one O(21), one O(23), one O(26), and one O(27) atom to form distorted NaO7 hexagonal pyramids that share  a cornercorner with one Si(6)O4 tetrahedra,  an edgeedge with one Al(2)O4 tetrahedra,  an edgeedge with one Al(4)O4 tetrahedra,  an edgeedge with one Si(2)O4 tetrahedra,  an edgeedge with one Si(4)O4 tetrahedra, and  an edgeedge with one Al(6)O5 trigonal bipyramid. In the seventh Na site, Na(7) is bonded in a 5-coordinate geometry to one O(14), one O(19), one O(20), one O(27), and one O(28) atom. In the eighth Na site, Na(8) is bonded in a 5-coordinate geometry to one N(2), one O(15), one O(17), one O(22), and one O(24) atom. There are six inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(20), one O(25), and one O(6) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. In the second Al site, Al(2) is bonded to one O(2), one O(21), one O(26), and one O(7) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  an edgeedge with one Na(6)O7 hexagonal pyramid. In the third Al site, Al(3) is bonded to one O(10), one O(11), one O(4), and one O(5) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(5)O4 tetrahedra. In the fourth Al site, Al(4) is bonded to one O(13), one O(14), one O(19), and one O(8) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, and  an edgeedge with one Na(6)O7 hexagonal pyramid. In the fifth Al site, Al(5) is bonded to one O(12), one O(15), one O(18), and one O(9) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. In the sixth Al site, Al(6) is bonded to one O(16), one O(17), one O(22), one O(23), and one O(28) atom to form AlO5 trigonal bipyramids that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  an edgeedge with one Na(6)O7 hexagonal pyramid. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(22), one O(25), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra, and  a cornercorner with one Al(6)O5 trigonal bipyramid. In the second Si site, Si(2) is bonded to one O(1), one O(23), one O(26), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra,  a cornercorner with one Al(6)O5 trigonal bipyramid, and  an edgeedge with one Na(6)O7 hexagonal pyramid. In the third Si site, Si(3) is bonded to one O(6), one O(7), one O(8), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra, and  a cornercorner with one Al(5)O4 tetrahedra. In the fourth Si site, Si(4) is bonded to one O(11), one O(13), one O(15), and one O(17) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(3)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra,  a cornercorner with one Al(5)O4 tetrahedra,  a cornercorner with one Al(6)O5 trigonal bipyramid, and  an edgeedge with one Na(6)O7 hexagonal pyramid. In the fifth Si site, Si(5) is bonded to one O(10), one O(12), one O(14), and one O(16) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(3)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra,  a cornercorner with one Al(5)O4 tetrahedra, and  a cornercorner with one Al(6)O5 trigonal bipyramid. In the sixth Si site, Si(6) is bonded to one O(18), one O(19), one O(20), and one O(24) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(6)O7 hexagonal pyramid,  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra, and  a cornercorner with one Al(5)O4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one Na(3) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Na(8), one O(27), and one O(3) atom. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(3), one Al(1), and one Si(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(4), one Al(2), and one Si(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Na(1) and one N(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Al(3), and one Si(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(2), one Al(3), and one Si(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Na(1), one Al(1), and one Si(3) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Al(2), and one Si(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(3), one Al(4), and one Si(3) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Na(4), one Al(5), and one Si(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Na(3), one Al(3), and one Si(5) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Na(4), one Al(3), and one Si(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Na(1), one Al(5), and one Si(5) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Na(6), one Al(4), and one Si(4) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Na(7), one Al(4), and one Si(5) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Na(4), one Na(8), one Al(5), and one Si(4) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Na(5), one Al(6), and one Si(5) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Na(6), one Na(8), one Al(6), and one Si(4) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Na(5), one Al(5), and one Si(6) atom. In the nineteenth O site, O(19) is bonded to one Na(6), one Na(7), one Al(4), and one Si(6) atom to form distorted edge-sharing ONa2AlSi trigonal pyramids. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Na(7), one Al(1), and one Si(6) atom. In the twenty-first O site, O(21) is bonded in a distorted single-bond geometry to one Na(6), one Al(2), and one O(24) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Na(5), one Na(8), one Al(6), and one Si(1) atom. In the twenty-third O site, O(23) is bonded in a 2-coordinate geometry to one Na(6), one Al(6), and one Si(2) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Na(8), one Si(6), and one O(21) atom. In the twenty-fifth O site, O(25) is bonded in a 4-coordinate geometry to one Na(1), one Na(5), one Al(1), and one Si(1) atom. In the twenty-sixth O site, O(26) is bonded in a 4-coordinate geometry to one Na(2), one Na(6), one Al(2), and one Si(2) atom. In the twenty-seventh O site, O(27) is bonded to one Na(2), one Na(6), one Na(7), and one N(2) atom to form distorted edge-sharing ONa3N tetrahedra. In the twenty-eighth O site, O(28) is bonded in a water-like geometry to one Na(7) and one Al(6) atom.
Na4Al3Si3NO14 crystallizes in the triclinic P1 space group. There are eight inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one N(1), one O(12), one O(25), one O(3), one O(4), and one O(6) atom. The Na(1)-N(1) bond length is 2.85 Å. The Na(1)-O(12) bond length is 2.45 Å. The Na(1)-O(25) bond length is 2.87 Å. The Na(1)-O(3) bond length is 2.44 Å. The Na(1)-O(4) bond length is 2.40 Å. The Na(1)-O(6) bond length is 2.61 Å. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one N(1), one O(13), one O(26), one O(27), one O(5), and one O(7) atom. The Na(2)-N(1) bond length is 2.63 Å. The Na(2)-O(13) bond length is 2.73 Å. The Na(2)-O(26) bond length is 2.56 Å. The Na(2)-O(27) bond length is 2.59 Å. The Na(2)-O(5) bond length is 2.41 Å. The Na(2)-O(7) bond length is 2.53 Å. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one N(1), one O(1), one O(10), and one O(8) atom. The Na(3)-N(1) bond length is 2.80 Å. The Na(3)-O(1) bond length is 2.28 Å. The Na(3)-O(10) bond length is 2.24 Å. The Na(3)-O(8) bond length is 2.30 Å. In the fourth Na site, Na(4) is bonded in a 3-coordinate geometry to one O(11), one O(15), one O(2), and one O(9) atom. The Na(4)-O(11) bond length is 2.29 Å. The Na(4)-O(15) bond length is 2.81 Å. The Na(4)-O(2) bond length is 2.28 Å. The Na(4)-O(9) bond length is 2.28 Å. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one O(16), one O(18), one O(22), and one O(25) atom. The Na(5)-O(16) bond length is 2.28 Å. The Na(5)-O(18) bond length is 2.35 Å. The Na(5)-O(22) bond length is 2.73 Å. The Na(5)-O(25) bond length is 2.36 Å. In the sixth Na site, Na(6) is bonded to one O(13), one O(17), one O(19), one O(21), one O(23), one O(26), and one O(27) atom to form distorted NaO7 hexagonal pyramids that share  a cornercorner with one Si(6)O4 tetrahedra,  an edgeedge with one Al(2)O4 tetrahedra,  an edgeedge with one Al(4)O4 tetrahedra,  an edgeedge with one Si(2)O4 tetrahedra,  an edgeedge with one Si(4)O4 tetrahedra, and  an edgeedge with one Al(6)O5 trigonal bipyramid. The Na(6)-O(13) bond length is 2.88 Å. The Na(6)-O(17) bond length is 2.53 Å. The Na(6)-O(19) bond length is 2.61 Å. The Na(6)-O(21) bond length is 2.47 Å. The Na(6)-O(23) bond length is 2.50 Å. The Na(6)-O(26) bond length is 2.58 Å. The Na(6)-O(27) bond length is 2.64 Å. In the seventh Na site, Na(7) is bonded in a 5-coordinate geometry to one O(14), one O(19), one O(20), one O(27), and one O(28) atom. The Na(7)-O(14) bond length is 2.46 Å. The Na(7)-O(19) bond length is 2.72 Å. The Na(7)-O(20) bond length is 2.44 Å. The Na(7)-O(27) bond length is 2.78 Å. The Na(7)-O(28) bond length is 2.23 Å. In the eighth Na site, Na(8) is bonded in a 5-coordinate geometry to one N(2), one O(15), one O(17), one O(22), and one O(24) atom. The Na(8)-N(2) bond length is 2.50 Å. The Na(8)-O(15) bond length is 2.41 Å. The Na(8)-O(17) bond length is 2.42 Å. The Na(8)-O(22) bond length is 2.29 Å. The Na(8)-O(24) bond length is 2.26 Å. There are six inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(20), one O(25), and one O(6) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. The Al(1)-O(1) bond length is 1.76 Å. The Al(1)-O(20) bond length is 1.76 Å. The Al(1)-O(25) bond length is 1.76 Å. The Al(1)-O(6) bond length is 1.76 Å. In the second Al site, Al(2) is bonded to one O(2), one O(21), one O(26), and one O(7) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  an edgeedge with one Na(6)O7 hexagonal pyramid. The Al(2)-O(2) bond length is 1.74 Å. The Al(2)-O(21) bond length is 1.79 Å. The Al(2)-O(26) bond length is 1.71 Å. The Al(2)-O(7) bond length is 1.74 Å. In the third Al site, Al(3) is bonded to one O(10), one O(11), one O(4), and one O(5) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(5)O4 tetrahedra. The Al(3)-O(10) bond length is 1.75 Å. The Al(3)-O(11) bond length is 1.77 Å. The Al(3)-O(4) bond length is 1.76 Å. The Al(3)-O(5) bond length is 1.74 Å. In the fourth Al site, Al(4) is bonded to one O(13), one O(14), one O(19), and one O(8) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, and  an edgeedge with one Na(6)O7 hexagonal pyramid. The Al(4)-O(13) bond length is 1.77 Å. The Al(4)-O(14) bond length is 1.77 Å. The Al(4)-O(19) bond length is 1.78 Å. The Al(4)-O(8) bond length is 1.77 Å. In the fifth Al site, Al(5) is bonded to one O(12), one O(15), one O(18), and one O(9) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. The Al(5)-O(12) bond length is 1.75 Å. The Al(5)-O(15) bond length is 1.77 Å. The Al(5)-O(18) bond length is 1.78 Å. The Al(5)-O(9) bond length is 1.77 Å. In the sixth Al site, Al(6) is bonded to one O(16), one O(17), one O(22), one O(23), and one O(28) atom to form AlO5 trigonal bipyramids that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  an edgeedge with one Na(6)O7 hexagonal pyramid. The Al(6)-O(16) bond length is 1.81 Å. The Al(6)-O(17) bond length is 1.94 Å. The Al(6)-O(22) bond length is 1.83 Å. The Al(6)-O(23) bond length is 1.83 Å. The Al(6)-O(28) bond length is 1.88 Å. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(22), one O(25), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra, and  a cornercorner with one Al(6)O5 trigonal bipyramid. The Si(1)-O(2) bond length is 1.65 Å. The Si(1)-O(22) bond length is 1.64 Å. The Si(1)-O(25) bond length is 1.65 Å. The Si(1)-O(4) bond length is 1.64 Å. In the second Si site, Si(2) is bonded to one O(1), one O(23), one O(26), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(3)O4 tetrahedra,  a cornercorner with one Al(6)O5 trigonal bipyramid, and  an edgeedge with one Na(6)O7 hexagonal pyramid. The Si(2)-O(1) bond length is 1.64 Å. The Si(2)-O(23) bond length is 1.64 Å. The Si(2)-O(26) bond length is 1.62 Å. The Si(2)-O(5) bond length is 1.63 Å. In the third Si site, Si(3) is bonded to one O(6), one O(7), one O(8), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra, and  a cornercorner with one Al(5)O4 tetrahedra. The Si(3)-O(6) bond length is 1.64 Å. The Si(3)-O(7) bond length is 1.63 Å. The Si(3)-O(8) bond length is 1.64 Å. The Si(3)-O(9) bond length is 1.64 Å. In the fourth Si site, Si(4) is bonded to one O(11), one O(13), one O(15), and one O(17) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(3)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra,  a cornercorner with one Al(5)O4 tetrahedra,  a cornercorner with one Al(6)O5 trigonal bipyramid, and  an edgeedge with one Na(6)O7 hexagonal pyramid. The Si(4)-O(11) bond length is 1.65 Å. The Si(4)-O(13) bond length is 1.66 Å. The Si(4)-O(15) bond length is 1.67 Å. The Si(4)-O(17) bond length is 1.63 Å. In the fifth Si site, Si(5) is bonded to one O(10), one O(12), one O(14), and one O(16) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(3)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra,  a cornercorner with one Al(5)O4 tetrahedra, and  a cornercorner with one Al(6)O5 trigonal bipyramid. The Si(5)-O(10) bond length is 1.64 Å. The Si(5)-O(12) bond length is 1.65 Å. The Si(5)-O(14) bond length is 1.65 Å. The Si(5)-O(16) bond length is 1.63 Å. In the sixth Si site, Si(6) is bonded to one O(18), one O(19), one O(20), and one O(24) atom to form SiO4 tetrahedra that share  a cornercorner with one Na(6)O7 hexagonal pyramid,  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(4)O4 tetrahedra, and  a cornercorner with one Al(5)O4 tetrahedra. The Si(6)-O(18) bond length is 1.64 Å. The Si(6)-O(19) bond length is 1.62 Å. The Si(6)-O(20) bond length is 1.63 Å. The Si(6)-O(24) bond length is 1.69 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Na(1), one Na(2), and one Na(3) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Na(8), one O(27), and one O(3) atom. The N(2)-O(27) bond length is 1.27 Å. The N(2)-O(3) bond length is 1.26 Å. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(3), one Al(1), and one Si(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(4), one Al(2), and one Si(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Na(1) and one N(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Al(3), and one Si(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(2), one Al(3), and one Si(2) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Na(1), one Al(1), and one Si(3) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Al(2), and one Si(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(3), one Al(4), and one Si(3) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Na(4), one Al(5), and one Si(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Na(3), one Al(3), and one Si(5) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Na(4), one Al(3), and one Si(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Na(1), one Al(5), and one Si(5) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Na(2), one Na(6), one Al(4), and one Si(4) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Na(7), one Al(4), and one Si(5) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Na(4), one Na(8), one Al(5), and one Si(4) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Na(5), one Al(6), and one Si(5) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Na(6), one Na(8), one Al(6), and one Si(4) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Na(5), one Al(5), and one Si(6) atom. In the nineteenth O site, O(19) is bonded to one Na(6), one Na(7), one Al(4), and one Si(6) atom to form distorted edge-sharing ONa2AlSi trigonal pyramids. In the twentieth O site, O(20) is bonded in a 3-coordinate geometry to one Na(7), one Al(1), and one Si(6) atom. In the twenty-first O site, O(21) is bonded in a distorted single-bond geometry to one Na(6), one Al(2), and one O(24) atom. The O(21)-O(24) bond length is 1.48 Å. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Na(5), one Na(8), one Al(6), and one Si(1) atom. In the twenty-third O site, O(23) is bonded in a 2-coordinate geometry to one Na(6), one Al(6), and one Si(2) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Na(8), one Si(6), and one O(21) atom. In the twenty-fifth O site, O(25) is bonded in a 4-coordinate geometry to one Na(1), one Na(5), one Al(1), and one Si(1) atom. In the twenty-sixth O site, O(26) is bonded in a 4-coordinate geometry to one Na(2), one Na(6), one Al(2), and one Si(2) atom. In the twenty-seventh O site, O(27) is bonded to one Na(2), one Na(6), one Na(7), and one N(2) atom to form distorted edge-sharing ONa3N tetrahedra. In the twenty-eighth O site, O(28) is bonded in a water-like geometry to one Na(7) and one Al(6) atom.