Ba(H2O3)2 crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to one H(1), one H(4), one O(1), one O(10), one O(11), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one Ba(2), one O(1), and one O(9) atom. In the second H site, H(2) is bonded in a linear geometry to one O(10) and one O(4) atom. In the third H site, H(3) is bonded in a linear geometry to one O(12) and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one Ba(2) and one O(6) atom. In the fifth H site, H(5) is bonded in a distorted linear geometry to one O(10) and one O(7) atom. In the sixth H site, H(6) is bonded in a linear geometry to one O(8) and one O(9) atom. In the seventh H site, H(7) is bonded in a linear geometry to one O(11) and one O(3) atom. In the eighth H site, H(8) is bonded in a linear geometry to one O(12) and one O(2) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(8) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one H(7) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(3) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Ba(2) and one H(4) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(5) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Ba(1) and one H(6) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Ba(2), one H(1), and one H(6) atom. In the tenth O site, O(10) is bonded in a 1-coordinate geometry to one Ba(2), one H(2), and one H(5) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(7) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Ba(1), one H(3), and one H(8) atom.
Ba(H2O3)2 crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. The Ba(1)-O(1) bond length is 2.80 Å. The Ba(1)-O(11) bond length is 2.83 Å. The Ba(1)-O(12) bond length is 2.80 Å. The Ba(1)-O(2) bond length is 2.94 Å. The Ba(1)-O(3) bond length is 2.79 Å. The Ba(1)-O(4) bond length is 2.94 Å. The Ba(1)-O(5) bond length is 2.88 Å. The Ba(1)-O(7) bond length is 2.92 Å. The Ba(1)-O(8) bond length is 2.83 Å. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to one H(1), one H(4), one O(1), one O(10), one O(11), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. The Ba(2)-H(1) bond length is 2.91 Å. The Ba(2)-H(4) bond length is 2.90 Å. The Ba(2)-O(1) bond length is 2.92 Å. The Ba(2)-O(10) bond length is 2.85 Å. The Ba(2)-O(11) bond length is 2.92 Å. The Ba(2)-O(2) bond length is 2.88 Å. The Ba(2)-O(3) bond length is 2.69 Å. The Ba(2)-O(4) bond length is 3.02 Å. The Ba(2)-O(5) bond length is 2.92 Å. The Ba(2)-O(6) bond length is 3.08 Å. The Ba(2)-O(7) bond length is 2.86 Å. The Ba(2)-O(9) bond length is 2.74 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one Ba(2), one O(1), and one O(9) atom. The H(1)-O(1) bond length is 1.11 Å. The H(1)-O(9) bond length is 1.35 Å. In the second H site, H(2) is bonded in a linear geometry to one O(10) and one O(4) atom. The H(2)-O(10) bond length is 1.22 Å. The H(2)-O(4) bond length is 1.23 Å. In the third H site, H(3) is bonded in a linear geometry to one O(12) and one O(5) atom. The H(3)-O(12) bond length is 1.46 Å. The H(3)-O(5) bond length is 1.06 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one Ba(2) and one O(6) atom. The H(4)-O(6) bond length is 0.99 Å. In the fifth H site, H(5) is bonded in a distorted linear geometry to one O(10) and one O(7) atom. The H(5)-O(10) bond length is 1.64 Å. The H(5)-O(7) bond length is 1.02 Å. In the sixth H site, H(6) is bonded in a linear geometry to one O(8) and one O(9) atom. The H(6)-O(8) bond length is 1.04 Å. The H(6)-O(9) bond length is 1.49 Å. In the seventh H site, H(7) is bonded in a linear geometry to one O(11) and one O(3) atom. The H(7)-O(11) bond length is 1.08 Å. The H(7)-O(3) bond length is 1.44 Å. In the eighth H site, H(8) is bonded in a linear geometry to one O(12) and one O(2) atom. The H(8)-O(12) bond length is 1.40 Å. The H(8)-O(2) bond length is 1.09 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(8) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one H(7) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(3) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Ba(2) and one H(4) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(5) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Ba(1) and one H(6) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Ba(2), one H(1), and one H(6) atom. In the tenth O site, O(10) is bonded in a 1-coordinate geometry to one Ba(2), one H(2), and one H(5) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one H(7) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Ba(1), one H(3), and one H(8) atom.