NaLa9Ge6O26 crystallizes in the trigonal P3 space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(4) atoms. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(3), and three equivalent O(7) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(3), and three equivalent O(6) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to three equivalent O(2), three equivalent O(4), and three equivalent O(5) atoms. In the fourth La site, La(4) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the fifth La site, La(5) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(8) atom. In the second Ge site, Ge(2) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(6), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(7) is bonded in a 4-coordinate geometry to one La(1), one La(4), one La(5), and one Ge(2) atom. In the second O site, O(8) is bonded in a 3-coordinate geometry to one La(4), one La(5), and one Ge(1) atom. In the third O site, O(9) is bonded in a trigonal planar geometry to three equivalent La(4) atoms. In the fourth O site, O(10) is bonded in a trigonal planar geometry to three equivalent La(5) atoms. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to one La(1), one La(2), one La(4), and one Ge(1) atom. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one La(3), one La(5), and one Ge(2) atom. In the seventh O site, O(3) is bonded to one La(1), one La(2), one La(5), and one Ge(2) atom to form distorted edge-sharing OLa3Ge tetrahedra. In the eighth O site, O(4) is bonded in a 4-coordinate geometry to one Na(1), one La(3), one La(4), and one Ge(1) atom. In the ninth O site, O(5) is bonded in a 4-coordinate geometry to one La(3), one La(4), one La(5), and one Ge(1) atom. In the tenth O site, O(6) is bonded in a 4-coordinate geometry to one La(2), one La(4), one La(5), and one Ge(2) atom.
NaLa9Ge6O26 crystallizes in the trigonal P3 space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(4) atoms. All Na(1)-O(2) bond lengths are 2.51 Å. All Na(1)-O(4) bond lengths are 2.68 Å. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(3), and three equivalent O(7) atoms. All La(1)-O(1) bond lengths are 2.47 Å. All La(1)-O(3) bond lengths are 2.56 Å. All La(1)-O(7) bond lengths are 2.91 Å. In the second La site, La(2) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(3), and three equivalent O(6) atoms. All La(2)-O(1) bond lengths are 2.46 Å. All La(2)-O(3) bond lengths are 2.55 Å. All La(2)-O(6) bond lengths are 2.91 Å. In the third La site, La(3) is bonded in a 9-coordinate geometry to three equivalent O(2), three equivalent O(4), and three equivalent O(5) atoms. All La(3)-O(2) bond lengths are 2.46 Å. All La(3)-O(4) bond lengths are 2.56 Å. All La(3)-O(5) bond lengths are 2.96 Å. In the fourth La site, La(4) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. The La(4)-O(1) bond length is 2.88 Å. The La(4)-O(4) bond length is 2.50 Å. The La(4)-O(5) bond length is 2.60 Å. The La(4)-O(6) bond length is 2.47 Å. The La(4)-O(7) bond length is 2.48 Å. The La(4)-O(8) bond length is 2.55 Å. The La(4)-O(9) bond length is 2.34 Å. In the fifth La site, La(5) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. The La(5)-O(10) bond length is 2.36 Å. The La(5)-O(2) bond length is 2.77 Å. The La(5)-O(3) bond length is 2.56 Å. The La(5)-O(5) bond length is 2.45 Å. The La(5)-O(6) bond length is 2.62 Å. The La(5)-O(7) bond length is 2.60 Å. The La(5)-O(8) bond length is 2.42 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(8) atom. The Ge(1)-O(1) bond length is 1.78 Å. The Ge(1)-O(4) bond length is 1.76 Å. The Ge(1)-O(5) bond length is 1.78 Å. The Ge(1)-O(8) bond length is 1.77 Å. In the second Ge site, Ge(2) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(6), and one O(7) atom. The Ge(2)-O(2) bond length is 1.74 Å. The Ge(2)-O(3) bond length is 1.79 Å. The Ge(2)-O(6) bond length is 1.78 Å. The Ge(2)-O(7) bond length is 1.79 Å. There are ten inequivalent O sites. In the first O site, O(7) is bonded in a 4-coordinate geometry to one La(1), one La(4), one La(5), and one Ge(2) atom. In the second O site, O(8) is bonded in a 3-coordinate geometry to one La(4), one La(5), and one Ge(1) atom. In the third O site, O(9) is bonded in a trigonal planar geometry to three equivalent La(4) atoms. In the fourth O site, O(10) is bonded in a trigonal planar geometry to three equivalent La(5) atoms. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to one La(1), one La(2), one La(4), and one Ge(1) atom. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one La(3), one La(5), and one Ge(2) atom. In the seventh O site, O(3) is bonded to one La(1), one La(2), one La(5), and one Ge(2) atom to form distorted edge-sharing OLa3Ge tetrahedra. In the eighth O site, O(4) is bonded in a 4-coordinate geometry to one Na(1), one La(3), one La(4), and one Ge(1) atom. In the ninth O site, O(5) is bonded in a 4-coordinate geometry to one La(3), one La(4), one La(5), and one Ge(1) atom. In the tenth O site, O(6) is bonded in a 4-coordinate geometry to one La(2), one La(4), one La(5), and one Ge(2) atom.