Li3GaGeO5 is Stannite-like structured and crystallizes in the orthorhombic Pna2_1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Ga(1)O4 tetrahedra, corners with three equivalent Ge(1)O4 tetrahedra, and corners with four equivalent Li(2)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(2), one O(4), and two equivalent O(3) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Ga(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, and corners with four equivalent Ge(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(1), one O(4), and two equivalent O(5) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Ge(1)O4 tetrahedra, and corners with four equivalent Ga(1)O4 tetrahedra. Ga(1) is bonded to one O(2), one O(5), and two equivalent O(1) atoms to form GaO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Ga(1)O4 tetrahedra, corners with two equivalent Ge(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, and corners with four equivalent Li(3)O4 tetrahedra. Ge(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form GeO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra, and corners with four equivalent Li(2)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(5) is bonded to two equivalent Li(3), one Ga(1), and one Ge(1) atom to form OLi2GaGe tetrahedra that share  a cornercorner with one O(3)Li3Ge tetrahedra, corners with two equivalent O(2)Li2GaGe tetrahedra, corners with two equivalent O(5)Li2GaGe tetrahedra, corners with three equivalent O(4)Li3Ge tetrahedra, and corners with four equivalent O(1)Li2Ga2 tetrahedra. In the second O site, O(1) is bonded to one Li(1), one Li(3), and two equivalent Ga(1) atoms to form OLi2Ga2 tetrahedra that share  a cornercorner with one O(3)Li3Ge tetrahedra, corners with two equivalent O(1)Li2Ga2 tetrahedra, corners with two equivalent O(4)Li3Ge tetrahedra, corners with three equivalent O(2)Li2GaGe tetrahedra, and corners with four equivalent O(5)Li2GaGe tetrahedra. In the third O site, O(2) is bonded to one Li(1), one Li(2), one Ga(1), and one Ge(1) atom to form OLi2GaGe tetrahedra that share corners with two equivalent O(5)Li2GaGe tetrahedra, corners with three equivalent O(1)Li2Ga2 tetrahedra, corners with three equivalent O(4)Li3Ge tetrahedra, and corners with four equivalent O(3)Li3Ge tetrahedra. In the fourth O site, O(3) is bonded to one Li(1), two equivalent Li(2), and one Ge(1) atom to form OLi3Ge tetrahedra that share  a cornercorner with one O(1)Li2Ga2 tetrahedra,  a cornercorner with one O(5)Li2GaGe tetrahedra, corners with two equivalent O(3)Li3Ge tetrahedra, corners with four equivalent O(2)Li2GaGe tetrahedra, and corners with four equivalent O(4)Li3Ge tetrahedra. In the fifth O site, O(4) is bonded to one Li(1), one Li(2), one Li(3), and one Ge(1) atom to form OLi3Ge tetrahedra that share corners with two equivalent O(1)Li2Ga2 tetrahedra, corners with three equivalent O(2)Li2GaGe tetrahedra, corners with three equivalent O(5)Li2GaGe tetrahedra, and corners with four equivalent O(3)Li3Ge tetrahedra.
Li3GaGeO5 is Stannite-like structured and crystallizes in the orthorhombic Pna2_1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Ga(1)O4 tetrahedra, corners with three equivalent Ge(1)O4 tetrahedra, and corners with four equivalent Li(2)O4 tetrahedra. The Li(1)-O(1) bond length is 2.06 Å. The Li(1)-O(2) bond length is 2.10 Å. The Li(1)-O(3) bond length is 1.95 Å. The Li(1)-O(4) bond length is 1.98 Å. In the second Li site, Li(2) is bonded to one O(2), one O(4), and two equivalent O(3) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Ga(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, and corners with four equivalent Ge(1)O4 tetrahedra. The Li(2)-O(2) bond length is 2.09 Å. The Li(2)-O(4) bond length is 1.99 Å. There is one shorter (1.97 Å) and one longer (1.99 Å) Li(2)-O(3) bond length. In the third Li site, Li(3) is bonded to one O(1), one O(4), and two equivalent O(5) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with three equivalent Ge(1)O4 tetrahedra, and corners with four equivalent Ga(1)O4 tetrahedra. The Li(3)-O(1) bond length is 2.01 Å. The Li(3)-O(4) bond length is 1.93 Å. There is one shorter (2.05 Å) and one longer (2.06 Å) Li(3)-O(5) bond length. Ga(1) is bonded to one O(2), one O(5), and two equivalent O(1) atoms to form GaO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Ga(1)O4 tetrahedra, corners with two equivalent Ge(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, and corners with four equivalent Li(3)O4 tetrahedra. The Ga(1)-O(2) bond length is 1.88 Å. The Ga(1)-O(5) bond length is 1.89 Å. There is one shorter (1.86 Å) and one longer (1.87 Å) Ga(1)-O(1) bond length. Ge(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form GeO4 tetrahedra that share corners with two equivalent Ga(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra, and corners with four equivalent Li(2)O4 tetrahedra. The Ge(1)-O(2) bond length is 1.83 Å. The Ge(1)-O(3) bond length is 1.74 Å. The Ge(1)-O(4) bond length is 1.74 Å. The Ge(1)-O(5) bond length is 1.84 Å. There are five inequivalent O sites. In the first O site, O(5) is bonded to two equivalent Li(3), one Ga(1), and one Ge(1) atom to form OLi2GaGe tetrahedra that share  a cornercorner with one O(3)Li3Ge tetrahedra, corners with two equivalent O(2)Li2GaGe tetrahedra, corners with two equivalent O(5)Li2GaGe tetrahedra, corners with three equivalent O(4)Li3Ge tetrahedra, and corners with four equivalent O(1)Li2Ga2 tetrahedra. In the second O site, O(1) is bonded to one Li(1), one Li(3), and two equivalent Ga(1) atoms to form OLi2Ga2 tetrahedra that share  a cornercorner with one O(3)Li3Ge tetrahedra, corners with two equivalent O(1)Li2Ga2 tetrahedra, corners with two equivalent O(4)Li3Ge tetrahedra, corners with three equivalent O(2)Li2GaGe tetrahedra, and corners with four equivalent O(5)Li2GaGe tetrahedra. In the third O site, O(2) is bonded to one Li(1), one Li(2), one Ga(1), and one Ge(1) atom to form OLi2GaGe tetrahedra that share corners with two equivalent O(5)Li2GaGe tetrahedra, corners with three equivalent O(1)Li2Ga2 tetrahedra, corners with three equivalent O(4)Li3Ge tetrahedra, and corners with four equivalent O(3)Li3Ge tetrahedra. In the fourth O site, O(3) is bonded to one Li(1), two equivalent Li(2), and one Ge(1) atom to form OLi3Ge tetrahedra that share  a cornercorner with one O(1)Li2Ga2 tetrahedra,  a cornercorner with one O(5)Li2GaGe tetrahedra, corners with two equivalent O(3)Li3Ge tetrahedra, corners with four equivalent O(2)Li2GaGe tetrahedra, and corners with four equivalent O(4)Li3Ge tetrahedra. In the fifth O site, O(4) is bonded to one Li(1), one Li(2), one Li(3), and one Ge(1) atom to form OLi3Ge tetrahedra that share corners with two equivalent O(1)Li2Ga2 tetrahedra, corners with three equivalent O(2)Li2GaGe tetrahedra, corners with three equivalent O(5)Li2GaGe tetrahedra, and corners with four equivalent O(3)Li3Ge tetrahedra.