La2(GeO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(2), one O(4), one O(5), one O(7), one O(9), two equivalent O(6), and two equivalent O(8) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(4), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form GeO6 octahedra that share corners with two equivalent Ge(3)O4 tetrahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids, and edges with two equivalent Ge(1)O6 octahedra. In the second Ge site, Ge(2) is bonded to one O(3), one O(6), one O(8), and two equivalent O(1) atoms to form distorted GeO5 trigonal bipyramids that share corners with two equivalent Ge(1)O6 octahedra and  an edgeedge with one Ge(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 46-56°. In the third Ge site, Ge(3) is bonded to one O(4), one O(5), one O(7), and one O(9) atom to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-59°. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ge(2) atoms. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one La(1), one La(2), and two equivalent Ge(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ge(2) and two equivalent Ge(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one La(1), one La(2), one Ge(1), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Ge(3) atom. In the sixth O site, O(6) is bonded to one La(1), two equivalent La(2), and one Ge(2) atom to form distorted edge-sharing OLa3Ge tetrahedra. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one La(1), one La(2), one Ge(1), and one Ge(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one La(1), two equivalent La(2), and one Ge(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Ge(3) atom.
La2(GeO3)3 crystallizes in the triclinic P-1 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. The La(1)-O(2) bond length is 2.69 Å. The La(1)-O(4) bond length is 2.70 Å. The La(1)-O(5) bond length is 2.64 Å. The La(1)-O(6) bond length is 2.57 Å. The La(1)-O(7) bond length is 2.80 Å. The La(1)-O(8) bond length is 2.58 Å. The La(1)-O(9) bond length is 2.33 Å. There is one shorter (2.52 Å) and one longer (2.64 Å) La(1)-O(1) bond length. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(2), one O(4), one O(5), one O(7), one O(9), two equivalent O(6), and two equivalent O(8) atoms. The La(2)-O(2) bond length is 2.94 Å. The La(2)-O(4) bond length is 2.84 Å. The La(2)-O(5) bond length is 2.36 Å. The La(2)-O(7) bond length is 2.67 Å. The La(2)-O(9) bond length is 2.64 Å. There is one shorter (2.41 Å) and one longer (2.64 Å) La(2)-O(6) bond length. There is one shorter (2.37 Å) and one longer (2.74 Å) La(2)-O(8) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(4), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form GeO6 octahedra that share corners with two equivalent Ge(3)O4 tetrahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids, and edges with two equivalent Ge(1)O6 octahedra. The Ge(1)-O(4) bond length is 1.88 Å. The Ge(1)-O(7) bond length is 1.87 Å. There is one shorter (1.87 Å) and one longer (1.88 Å) Ge(1)-O(2) bond length. There is one shorter (1.93 Å) and one longer (2.00 Å) Ge(1)-O(3) bond length. In the second Ge site, Ge(2) is bonded to one O(3), one O(6), one O(8), and two equivalent O(1) atoms to form distorted GeO5 trigonal bipyramids that share corners with two equivalent Ge(1)O6 octahedra and  an edgeedge with one Ge(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 46-56°. The Ge(2)-O(3) bond length is 1.86 Å. The Ge(2)-O(6) bond length is 1.79 Å. The Ge(2)-O(8) bond length is 1.81 Å. There is one shorter (1.91 Å) and one longer (1.94 Å) Ge(2)-O(1) bond length. In the third Ge site, Ge(3) is bonded to one O(4), one O(5), one O(7), and one O(9) atom to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-59°. The Ge(3)-O(4) bond length is 1.78 Å. The Ge(3)-O(5) bond length is 1.72 Å. The Ge(3)-O(7) bond length is 1.77 Å. The Ge(3)-O(9) bond length is 1.72 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ge(2) atoms. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one La(1), one La(2), and two equivalent Ge(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ge(2) and two equivalent Ge(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one La(1), one La(2), one Ge(1), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Ge(3) atom. In the sixth O site, O(6) is bonded to one La(1), two equivalent La(2), and one Ge(2) atom to form distorted edge-sharing OLa3Ge tetrahedra. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one La(1), one La(2), one Ge(1), and one Ge(3) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one La(1), two equivalent La(2), and one Ge(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Ge(3) atom.