BaGa2B2O7 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Ga(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Ba(1) and two equivalent Ga(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Ba(1) and two equivalent B(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ga(1), and one B(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Ga(1) and one B(1) atom.
BaGa2B2O7 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Both Ba(1)-O(2) bond lengths are 3.20 Å. Both Ba(1)-O(3) bond lengths are 2.77 Å. All Ba(1)-O(1) bond lengths are 2.77 Å. Ga(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. The Ga(1)-O(3) bond length is 1.90 Å. The Ga(1)-O(4) bond length is 1.87 Å. Both Ga(1)-O(1) bond lengths are 1.86 Å. B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(4) atom. The B(1)-O(2) bond length is 1.41 Å. The B(1)-O(3) bond length is 1.38 Å. The B(1)-O(4) bond length is 1.36 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Ba(1) and two equivalent Ga(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Ba(1) and two equivalent B(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ga(1), and one B(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Ga(1) and one B(1) atom.