BaGaB4H3O10 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(6), one O(7), one O(8), and two equivalent O(5) atoms. Ga(1) is bonded to one O(3), one O(5), one O(9), and two equivalent O(7) atoms to form GaO5 trigonal bipyramids that share corners with two equivalent B(3)O4 tetrahedra and  an edgeedge with one Ga(1)O5 trigonal bipyramid. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(4) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. In the third B site, B(3) is bonded to one O(1), one O(6), one O(7), and one O(8) atom to form BO4 tetrahedra that share corners with two equivalent Ga(1)O5 trigonal bipyramids. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(10), one O(8), and one O(9) atom. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. In the third H site, H(3) is bonded in a distorted linear geometry to one O(10) and one O(9) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Ba(1), one B(1), and one B(3) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Ba(1), one H(1), and one H(2) atom. In the third O site, O(3) is bonded in a 2-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 bent 120 degrees geometry to one Ba(1), one B(1), and one B(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Ga(1), and one B(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Ba(1), one B(2), and one B(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ba(1), two equivalent Ga(1), and one B(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one B(3), and one B(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ga(1), one B(4), and one H(3) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one B(4), and one H(3) atom.
BaGaB4H3O10 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(6), one O(7), one O(8), and two equivalent O(5) atoms. The Ba(1)-O(1) bond length is 2.85 Å. The Ba(1)-O(10) bond length is 2.78 Å. The Ba(1)-O(2) bond length is 2.66 Å. The Ba(1)-O(3) bond length is 2.76 Å. The Ba(1)-O(4) bond length is 2.99 Å. The Ba(1)-O(6) bond length is 2.82 Å. The Ba(1)-O(7) bond length is 2.95 Å. The Ba(1)-O(8) bond length is 3.05 Å. There is one shorter (2.89 Å) and one longer (2.95 Å) Ba(1)-O(5) bond length. Ga(1) is bonded to one O(3), one O(5), one O(9), and two equivalent O(7) atoms to form GaO5 trigonal bipyramids that share corners with two equivalent B(3)O4 tetrahedra and  an edgeedge with one Ga(1)O5 trigonal bipyramid. The Ga(1)-O(3) bond length is 1.86 Å. The Ga(1)-O(5) bond length is 1.88 Å. The Ga(1)-O(9) bond length is 1.96 Å. There is one shorter (1.89 Å) and one longer (2.04 Å) Ga(1)-O(7) bond length. There are four inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(4) atom. The B(1)-O(1) bond length is 1.36 Å. The B(1)-O(3) bond length is 1.35 Å. The B(1)-O(4) bond length is 1.39 Å. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. The B(2)-O(4) bond length is 1.40 Å. The B(2)-O(5) bond length is 1.35 Å. The B(2)-O(6) bond length is 1.35 Å. In the third B site, B(3) is bonded to one O(1), one O(6), one O(7), and one O(8) atom to form BO4 tetrahedra that share corners with two equivalent Ga(1)O5 trigonal bipyramids. The B(3)-O(1) bond length is 1.46 Å. The B(3)-O(6) bond length is 1.48 Å. The B(3)-O(7) bond length is 1.46 Å. The B(3)-O(8) bond length is 1.47 Å. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(10), one O(8), and one O(9) atom. The B(4)-O(10) bond length is 1.38 Å. The B(4)-O(8) bond length is 1.38 Å. The B(4)-O(9) bond length is 1.35 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.97 Å. In the third H site, H(3) is bonded in a distorted linear geometry to one O(10) and one O(9) atom. The H(3)-O(10) bond length is 1.00 Å. The H(3)-O(9) bond length is 1.66 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Ba(1), one B(1), and one B(3) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Ba(1), one H(1), and one H(2) atom. In the third O site, O(3) is bonded in a 2-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 bent 120 degrees geometry to one Ba(1), one B(1), and one B(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Ba(1), one Ga(1), and one B(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Ba(1), one B(2), and one B(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ba(1), two equivalent Ga(1), and one B(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one B(3), and one B(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ga(1), one B(4), and one H(3) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one B(4), and one H(3) atom.