BaC10H14(NO3)4 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a distorted q6 geometry to two equivalent N(1), two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. Both Ba(1)-N(1) bond lengths are 2.90 Å. Both Ba(1)-O(1) bond lengths are 2.93 Å. Both Ba(1)-O(3) bond lengths are 2.91 Å. Both Ba(1)-O(5) bond lengths are 2.86 Å. Both Ba(1)-O(6) bond lengths are 2.88 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-O(1) bond length is 1.32 Å. The C(1)-O(2) bond length is 1.24 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one N(1) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-N(1) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(7) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(7) bond length is 1.08 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one N(2) atom. The C(4)-C(5) bond length is 1.48 Å. The C(4)-N(2) bond length is 1.37 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(5)-O(3) bond length is 1.26 Å. The C(5)-O(4) bond length is 1.29 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to one Ba(1) and one C(2) atom. In the second N site, N(2) is bonded in a 2-coordinate geometry to one C(4) and one H(6) atom. The N(2)-H(6) bond length is 1.02 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(4) atom. The H(1)-O(1) bond length is 1.08 Å. The H(1)-O(4) bond length is 1.43 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. The H(2)-O(5) bond length is 1.00 Å. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. The H(3)-O(2) bond length is 1.67 Å. The H(3)-O(5) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(6) atom. The H(4)-O(6) bond length is 1.00 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(6) atom. The H(5)-O(6) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one N(2) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(3) atom. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted bent 120 degrees geometry to one C(5) and one H(1) atom. In the second O site, O(5) is bonded in a water-like geometry to one Ba(1), one H(2), and one H(3) atom. In the third O site, O(6) is bonded in a water-like geometry to one Ba(1), one H(4), and one H(5) atom. In the fourth O site, O(1) is bonded in a bent 120 degrees geometry to one Ba(1), one C(1), and one H(1) atom. In the fifth O site, O(2) is bonded in a distorted single-bond geometry to one C(1) and one H(3) atom. In the sixth O site, O(3) is bonded in a single-bond geometry to one Ba(1) and one C(5) atom. Linkers: 4 [O]C(=O)c1cc(C(=O)O)n[nH]1. Metal clusters: 2 [Ba]. The MOF has largest included sphere 2.77 A, density 2.02 g/cm3, surface area 3341.33 m2/g, accessible volume 0.11 cm3/g