Na4C8H10O17(CH2)4 crystallizes in the triclinic P-1 space group. The structure consists of eight 02329_fluka molecules inside a Na4C8H10O17 framework. In the Na4C8H10O17 framework, there are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted octahedral geometry to one O(14), one O(15), one O(3), one O(4), one O(5), and one O(6) atom. The Na(1)-O(14) bond length is 2.30 Å. The Na(1)-O(15) bond length is 2.48 Å. The Na(1)-O(3) bond length is 2.46 Å. The Na(1)-O(4) bond length is 2.41 Å. The Na(1)-O(5) bond length is 2.61 Å. The Na(1)-O(6) bond length is 2.40 Å. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(1), one O(12), one O(2), one O(3), and one O(6) atom. The Na(2)-O(1) bond length is 2.39 Å. The Na(2)-O(12) bond length is 2.33 Å. The Na(2)-O(2) bond length is 2.42 Å. The Na(2)-O(3) bond length is 2.35 Å. The Na(2)-O(6) bond length is 2.29 Å. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(13), one O(2), one O(7), and one O(8) atom. The Na(3)-O(11) bond length is 2.34 Å. The Na(3)-O(12) bond length is 2.73 Å. The Na(3)-O(13) bond length is 2.35 Å. The Na(3)-O(2) bond length is 2.38 Å. The Na(3)-O(7) bond length is 2.35 Å. The Na(3)-O(8) bond length is 2.45 Å. In the fourth Na site, Na(4) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(14), one O(17), one O(5), and one O(7) atom. The Na(4)-O(1) bond length is 2.48 Å. The Na(4)-O(10) bond length is 2.53 Å. The Na(4)-O(12) bond length is 2.42 Å. The Na(4)-O(14) bond length is 2.48 Å. The Na(4)-O(17) bond length is 2.48 Å. The Na(4)-O(5) bond length is 2.39 Å. The Na(4)-O(7) bond length is 2.46 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(4) and one O(5) atom. The C(1)-O(4) bond length is 1.31 Å. The C(1)-O(5) bond length is 1.25 Å. In the second C site, C(3) is bonded in a distorted single-bond geometry to one O(10) atom. The C(3)-O(10) bond length is 1.41 Å. In the third C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(8) and one O(9) atom. The C(5)-O(8) bond length is 1.26 Å. The C(5)-O(9) bond length is 1.31 Å. In the fourth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(6) and one O(7) atom. The C(6)-O(6) bond length is 1.26 Å. The C(6)-O(7) bond length is 1.28 Å. In the fifth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. The C(7)-O(11) bond length is 1.31 Å. The C(7)-O(12) bond length is 1.25 Å. In the sixth C site, C(9) is bonded in a distorted single-bond geometry to one O(17) atom. The C(9)-O(17) bond length is 1.41 Å. In the seventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one O(15) and one O(16) atom. The C(11)-O(15) bond length is 1.26 Å. The C(11)-O(16) bond length is 1.30 Å. In the eighth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one O(13) and one O(14) atom. The C(12)-O(13) bond length is 1.27 Å. The C(12)-O(14) bond length is 1.27 Å. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 0.98 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(2) atom. The H(3)-O(2) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) atom. The H(4)-O(2) bond length is 0.98 Å. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(16) and one O(3) atom. The H(5)-O(16) bond length is 1.70 Å. The H(5)-O(3) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(3) atom. The H(6)-O(3) bond length is 0.99 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(10) and one O(8) atom. The H(7)-O(10) bond length is 1.00 Å. The H(7)-O(8) bond length is 1.70 Å. In the eighth H site, H(12) is bonded in a linear geometry to one O(16) and one O(4) atom. The H(12)-O(16) bond length is 1.34 Å. The H(12)-O(4) bond length is 1.12 Å. In the ninth H site, H(13) is bonded in a distorted single-bond geometry to one O(15) and one O(17) atom. The H(13)-O(15) bond length is 1.66 Å. The H(13)-O(17) bond length is 1.00 Å. In the tenth H site, H(18) is bonded in a linear geometry to one O(11) and one O(9) atom. The H(18)-O(11) bond length is 1.11 Å. The H(18)-O(9) bond length is 1.37 Å. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Na(2), one Na(4), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Na(2), one Na(3), one H(3), and one H(4) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Na(1), one Na(2), one H(5), and one H(6) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Na(1), one C(1), and one H(12) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Na(1), one Na(4), and one C(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one Na(2), and one C(6) atom. In the seventh O site, O(7) is bonded in a 1-coordinate geometry to one Na(3), one Na(4), and one C(6) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Na(3), one C(5), and one H(7) atom. In the ninth O site, O(9) is bonded in a water-like geometry to one C(5) and one H(18) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Na(4), one C(3), and one H(7) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Na(3), one C(7), and one H(18) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Na(2), one Na(3), one Na(4), and one C(7) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 120 degrees geometry to one Na(3) and one C(12) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Na(1), one Na(4), and one C(12) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Na(1), one C(11), and one H(13) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one C(11), one H(12), and one H(5) atom. In the seventeenth O site, O(17) is bonded in a distorted water-like geometry to one Na(4), one C(9), and one H(13) atom. Linkers: 4 [O]C(=O)CC(O)(CC(=O)O)C([O])=O. Metal clusters: 8 [Na]. The MOF has largest included sphere 1.48 A, density 1.88 g/cm3, surface area 2454.53 m2/g, accessible volume 0.05 cm3/g