CsC13NH8O4(CH)2 crystallizes in the monoclinic P2_1 space group. The structure consists of four 02329_fluka molecules inside a CsC13NH8O4 framework. In the CsC13NH8O4 framework, Cs(1) is bonded in a 8-coordinate geometry to one H(10), one H(4), one H(9), one O(1), one O(2), one O(4), and two equivalent O(3) atoms. The Cs(1)-H(10) bond length is 3.14 Å. The Cs(1)-H(4) bond length is 3.34 Å. The Cs(1)-H(9) bond length is 3.23 Å. The Cs(1)-O(1) bond length is 2.98 Å. The Cs(1)-O(2) bond length is 3.04 Å. The Cs(1)-O(4) bond length is 3.10 Å. There is one shorter (3.04 Å) and one longer (3.09 Å) Cs(1)-O(3) bond length. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one O(1) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-N(1) bond length is 1.40 Å. The C(1)-O(1) bond length is 1.24 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(6) atom. The C(2)-C(3) bond length is 1.42 Å. The C(2)-C(6) bond length is 1.39 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(9) atom. The C(3)-C(4) bond length is 1.42 Å. The C(3)-C(9) bond length is 1.43 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(12), one C(3), and one C(5) atom. The C(4)-C(12) bond length is 1.39 Å. The C(4)-C(5) bond length is 1.47 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(1), and one O(2) atom. The C(5)-N(1) bond length is 1.40 Å. The C(5)-O(2) bond length is 1.24 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(2) and one H(1) atom. The C(6)-H(1) bond length is 1.09 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(9) and one H(3) atom. The C(8)-C(9) bond length is 1.42 Å. The C(8)-H(3) bond length is 1.09 Å. In the eighth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(3), and one C(8) atom. The C(9)-C(10) bond length is 1.42 Å. In the ninth C site, C(10) is bonded in a distorted single-bond geometry to one C(9) and one H(4) atom. The C(10)-H(4) bond length is 1.09 Å. In the tenth C site, C(12) is bonded in a distorted single-bond geometry to one C(4) and one H(6) atom. The C(12)-H(6) bond length is 1.09 Å. In the eleventh C site, C(13) is bonded in a distorted water-like geometry to one N(1) and one H(7) atom. The C(13)-N(1) bond length is 1.47 Å. The C(13)-H(7) bond length is 1.10 Å. In the twelfth C site, C(14) is bonded in a trigonal non-coplanar geometry to one H(10), one H(8), and one H(9) atom. The C(14)-H(10) bond length is 1.10 Å. The C(14)-H(8) bond length is 1.10 Å. The C(14)-H(9) bond length is 1.10 Å. In the thirteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(15)-O(3) bond length is 1.28 Å. The C(15)-O(4) bond length is 1.27 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(13), and one C(5) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(6) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the third H site, H(4) is bonded in a single-bond geometry to one Cs(1) and one C(10) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the fifth H site, H(7) is bonded in a single-bond geometry to one C(13) atom. In the sixth H site, H(8) is bonded in a single-bond geometry to one C(14) atom. In the seventh H site, H(9) is bonded in a single-bond geometry to one Cs(1) and one C(14) atom. In the eighth H site, H(10) is bonded in a single-bond geometry to one Cs(1) and one C(14) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Cs(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Cs(1) and one C(5) atom. In the third O site, O(3) is bonded in a single-bond geometry to two equivalent Cs(1) and one C(15) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Cs(1) and one C(15) atom. Linkers: 2 C[C@@H](C([O])=O)N1C(=O)c2cccc3cccc(c23)C1=O. Metal clusters: 2 [Cs]. The MOF has largest included sphere 1.85 A, density 1.97 g/cm3, surface area 3673.86 m2/g, accessible volume 0.09 cm3/g