BaC12N4H10O9(CH3)2 crystallizes in the monoclinic Pc space group. The structure consists of four 02329_fluka molecules inside a BaC12N4H10O9 framework. In the BaC12N4H10O9 framework, Ba(1) is bonded in a 10-coordinate geometry to one N(1), one O(4), one O(5), one O(7), two equivalent O(1), two equivalent O(8), and two equivalent O(9) atoms. The Ba(1)-N(1) bond length is 3.13 Å. The Ba(1)-O(4) bond length is 2.73 Å. The Ba(1)-O(5) bond length is 2.84 Å. The Ba(1)-O(7) bond length is 3.10 Å. There is one shorter (2.83 Å) and one longer (2.90 Å) Ba(1)-O(1) bond length. There is one shorter (2.75 Å) and one longer (2.93 Å) Ba(1)-O(8) bond length. There is one shorter (2.85 Å) and one longer (2.88 Å) Ba(1)-O(9) bond length. There are twelve 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 1.49 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.29 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 1.40 Å. The C(2)-N(1) bond length is 1.38 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 N(2) atom. The C(3)-C(4) bond length is 1.47 Å. The C(3)-N(2) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(4)-O(3) bond length is 1.32 Å. The C(4)-O(4) bond length is 1.24 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(6), one N(1), and one N(2) atom. The C(5)-C(6) bond length is 1.49 Å. The C(5)-N(1) bond length is 1.34 Å. The C(5)-N(2) bond length is 1.36 Å. In the sixth C site, C(6) is bonded in a distorted water-like geometry to one C(5), one H(7), and one H(8) atom. The C(6)-H(7) bond length is 1.10 Å. The C(6)-H(8) bond length is 1.10 Å. In the seventh C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(8)-C(9) bond length is 1.48 Å. The C(8)-O(5) bond length is 1.25 Å. The C(8)-O(6) bond length is 1.32 Å. In the eighth C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one N(3) atom. The C(9)-C(10) bond length is 1.40 Å. The C(9)-N(3) bond length is 1.38 Å. In the ninth C site, C(10) is bonded in a distorted single-bond geometry to one C(11), one C(9), and one N(4) atom. The C(10)-C(11) bond length is 1.48 Å. The C(10)-N(4) bond length is 1.37 Å. In the tenth C site, C(11) is bonded in a bent 120 degrees geometry to one C(10), one O(7), and one O(8) atom. The C(11)-O(7) bond length is 1.29 Å. The C(11)-O(8) bond length is 1.26 Å. In the eleventh C site, C(12) is bonded in a distorted trigonal planar geometry to one C(13), one N(3), and one N(4) atom. The C(12)-C(13) bond length is 1.49 Å. The C(12)-N(3) bond length is 1.34 Å. The C(12)-N(4) bond length is 1.36 Å. In the twelfth C site, C(13) is bonded in a distorted water-like geometry to one C(12), one H(12), and one H(13) atom. The C(13)-H(12) bond length is 1.10 Å. The C(13)-H(13) bond length is 1.10 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a water-like geometry to one Ba(1), one C(2), and one C(5) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(3), one C(5), and one H(1) atom. The N(2)-H(1) bond length is 1.04 Å. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one C(12), one C(9), and one H(5) atom. The N(3)-H(5) bond length is 1.73 Å. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one C(10), one C(12), and one H(2) atom. The N(4)-H(2) bond length is 1.03 Å. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(4) atom. In the third H site, H(3) is bonded in a linear geometry to one O(2) and one O(3) atom. The H(3)-O(2) bond length is 1.39 Å. The H(3)-O(3) bond length is 1.09 Å. In the fourth H site, H(4) is bonded in a linear geometry to one O(6) and one O(7) atom. The H(4)-O(6) bond length is 1.10 Å. The H(4)-O(7) bond length is 1.33 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(3) and one O(9) atom. The H(5)-O(9) bond length is 1.01 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(9) atom. The H(6)-O(9) bond length is 0.98 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(6) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(6) atom. In the ninth H site, H(12) is bonded in a single-bond geometry to one C(13) atom. In the tenth H site, H(13) is bonded in a single-bond geometry to one C(13) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent Ba(1) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one C(1) and one H(3) atom. In the third O site, O(3) is bonded in a water-like geometry to one C(4) and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ba(1) and one C(4) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Ba(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one C(8) and one H(4) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Ba(1), one C(11), and one H(4) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one C(11) atom. In the ninth O site, O(9) is bonded in a water-like geometry to two equivalent Ba(1), one H(5), and one H(6) atom. Linkers: 2 CCc1nc(C(=O)O)c(C([O])=O)[nH]1 ,2 CCc1nc(C([O])=O)c(C(=O)O)[nH]1. Metal clusters: 2 [Ba]. The MOF has largest included sphere 2.32 A, density 2.02 g/cm3, surface area 3512.87 m2/g, accessible volume 0.07 cm3/g