LiGe2(PO4)3 crystallizes in the trigonal R-3 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted hexagonal planar geometry to six equivalent O(2) atoms. In the second Li site, Li(2) is bonded in a distorted hexagonal planar geometry to six equivalent O(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form GeO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. In the second Ge site, Ge(2) is bonded to three equivalent O(2) and three equivalent O(4) atoms to form GeO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Ge(1)O6 octahedra and corners with two equivalent Ge(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-42°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(2), one Ge(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Ge(2), and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Ge(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Ge(2) and one P(1) atom.
LiGe2(PO4)3 crystallizes in the trigonal R-3 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted hexagonal planar geometry to six equivalent O(2) atoms. All Li(1)-O(2) bond lengths are 2.25 Å. In the second Li site, Li(2) is bonded in a distorted hexagonal planar geometry to six equivalent O(1) atoms. All Li(2)-O(1) bond lengths are 2.27 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to three equivalent O(1) and three equivalent O(3) atoms to form GeO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. All Ge(1)-O(1) bond lengths are 1.91 Å. All Ge(1)-O(3) bond lengths are 1.87 Å. In the second Ge site, Ge(2) is bonded to three equivalent O(2) and three equivalent O(4) atoms to form GeO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra. All Ge(2)-O(2) bond lengths are 1.90 Å. All Ge(2)-O(4) bond lengths are 1.86 Å. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Ge(1)O6 octahedra and corners with two equivalent Ge(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-42°. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.55 Å. The P(1)-O(3) bond length is 1.54 Å. The P(1)-O(4) bond length is 1.53 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(2), one Ge(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Ge(2), and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Ge(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Ge(2) and one P(1) atom.