SrLaGa3O7 crystallizes in the orthorhombic Cmm2 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(5), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. La(1) is bonded in a 8-coordinate geometry to one O(2), one O(6), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(1), one O(6), and two equivalent O(3) atoms to form distorted corner-sharing GaO4 tetrahedra. In the third Ga site, Ga(3) is bonded to one O(2), one O(5), and two equivalent O(4) atoms to form corner-sharing GaO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(5) is bonded to two equivalent Sr(1) and two equivalent Ga(3) atoms to form distorted OSr2Ga2 tetrahedra that share corners with two equivalent O(2)Sr2LaGa tetrahedra, corners with two equivalent O(1)SrLa2Ga tetrahedra, and edges with two equivalent O(2)Sr2LaGa tetrahedra. In the second O site, O(6) is bonded to two equivalent La(1) and two equivalent Ga(2) atoms to form distorted OLa2Ga2 tetrahedra that share corners with two equivalent O(2)Sr2LaGa tetrahedra, corners with two equivalent O(1)SrLa2Ga tetrahedra, and edges with two equivalent O(1)SrLa2Ga tetrahedra. In the third O site, O(1) is bonded to one Sr(1), two equivalent La(1), and one Ga(2) atom to form OSrLa2Ga tetrahedra that share  a cornercorner with one O(6)La2Ga2 tetrahedra,  a cornercorner with one O(5)Sr2Ga2 tetrahedra, corners with four equivalent O(2)Sr2LaGa tetrahedra,  an edgeedge with one O(6)La2Ga2 tetrahedra, and  an edgeedge with one O(1)SrLa2Ga tetrahedra. In the fourth O site, O(2) is bonded to two equivalent Sr(1), one La(1), and one Ga(3) atom to form distorted OSr2LaGa tetrahedra that share  a cornercorner with one O(6)La2Ga2 tetrahedra,  a cornercorner with one O(5)Sr2Ga2 tetrahedra, corners with four equivalent O(1)SrLa2Ga tetrahedra,  an edgeedge with one O(5)Sr2Ga2 tetrahedra, and  an edgeedge with one O(2)Sr2LaGa tetrahedra. In the fifth O site, O(3) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one Ga(1), and one Ga(2) atom. In the sixth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one Ga(1), and one Ga(3) atom.
SrLaGa3O7 crystallizes in the orthorhombic Cmm2 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(5), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. The Sr(1)-O(1) bond length is 2.63 Å. The Sr(1)-O(5) bond length is 2.56 Å. Both Sr(1)-O(2) bond lengths are 2.72 Å. Both Sr(1)-O(3) bond lengths are 2.59 Å. Both Sr(1)-O(4) bond lengths are 3.01 Å. La(1) is bonded in a 8-coordinate geometry to one O(2), one O(6), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. The La(1)-O(2) bond length is 2.42 Å. The La(1)-O(6) bond length is 2.51 Å. Both La(1)-O(1) bond lengths are 2.61 Å. Both La(1)-O(3) bond lengths are 2.95 Å. Both La(1)-O(4) bond lengths are 2.50 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form corner-sharing GaO4 tetrahedra. Both Ga(1)-O(3) bond lengths are 1.85 Å. Both Ga(1)-O(4) bond lengths are 1.87 Å. In the second Ga site, Ga(2) is bonded to one O(1), one O(6), and two equivalent O(3) atoms to form distorted corner-sharing GaO4 tetrahedra. The Ga(2)-O(1) bond length is 1.83 Å. The Ga(2)-O(6) bond length is 1.88 Å. Both Ga(2)-O(3) bond lengths are 1.87 Å. In the third Ga site, Ga(3) is bonded to one O(2), one O(5), and two equivalent O(4) atoms to form corner-sharing GaO4 tetrahedra. The Ga(3)-O(2) bond length is 1.82 Å. The Ga(3)-O(5) bond length is 1.84 Å. Both Ga(3)-O(4) bond lengths are 1.89 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded to two equivalent Sr(1) and two equivalent Ga(3) atoms to form distorted OSr2Ga2 tetrahedra that share corners with two equivalent O(2)Sr2LaGa tetrahedra, corners with two equivalent O(1)SrLa2Ga tetrahedra, and edges with two equivalent O(2)Sr2LaGa tetrahedra. In the second O site, O(6) is bonded to two equivalent La(1) and two equivalent Ga(2) atoms to form distorted OLa2Ga2 tetrahedra that share corners with two equivalent O(2)Sr2LaGa tetrahedra, corners with two equivalent O(1)SrLa2Ga tetrahedra, and edges with two equivalent O(1)SrLa2Ga tetrahedra. In the third O site, O(1) is bonded to one Sr(1), two equivalent La(1), and one Ga(2) atom to form OSrLa2Ga tetrahedra that share  a cornercorner with one O(6)La2Ga2 tetrahedra,  a cornercorner with one O(5)Sr2Ga2 tetrahedra, corners with four equivalent O(2)Sr2LaGa tetrahedra,  an edgeedge with one O(6)La2Ga2 tetrahedra, and  an edgeedge with one O(1)SrLa2Ga tetrahedra. In the fourth O site, O(2) is bonded to two equivalent Sr(1), one La(1), and one Ga(3) atom to form distorted OSr2LaGa tetrahedra that share  a cornercorner with one O(6)La2Ga2 tetrahedra,  a cornercorner with one O(5)Sr2Ga2 tetrahedra, corners with four equivalent O(1)SrLa2Ga tetrahedra,  an edgeedge with one O(5)Sr2Ga2 tetrahedra, and  an edgeedge with one O(2)Sr2LaGa tetrahedra. In the fifth O site, O(3) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one Ga(1), and one Ga(2) atom. In the sixth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one La(1), one Ga(1), and one Ga(3) atom.