Zn3C14H20(NO9)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one N(1), one O(1), one O(2), one O(6), and two equivalent O(7) atoms to form distorted edge-sharing ZnNO5 pentagonal pyramids. The Zn(1)-N(1) bond length is 2.04 Å. The Zn(1)-O(1) bond length is 2.03 Å. The Zn(1)-O(2) bond length is 2.13 Å. The Zn(1)-O(6) bond length is 2.28 Å. There is one shorter (2.10 Å) and one longer (2.31 Å) Zn(1)-O(7) bond length. In the second Zn site, Zn(2) is bonded in an octahedral geometry to two equivalent O(3), two equivalent O(4), and two equivalent O(9) atoms. Both Zn(2)-O(3) bond lengths are 2.06 Å. Both Zn(2)-O(4) bond lengths are 2.15 Å. Both Zn(2)-O(9) bond lengths are 2.16 Å. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(6), and one N(1) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-C(6) bond length is 1.51 Å. The C(1)-N(1) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(9) atom. The C(2)-H(9) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one O(9) atom. The C(3)-O(9) bond length is 1.33 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(10) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(10) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one C(7), and one N(1) atom. The C(5)-C(7) bond length is 1.51 Å. The C(5)-N(1) bond length is 1.35 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(5), and one O(6) atom. The C(6)-O(5) bond length is 1.27 Å. The C(6)-O(6) bond length is 1.28 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(7), and one O(8) atom. The C(7)-O(7) bond length is 1.28 Å. The C(7)-O(8) bond length is 1.26 Å. N(1) is bonded in a trigonal planar geometry to one Zn(1), one C(1), and one C(5) atom. 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 0.99 Å. In the second H site, H(2) is bonded in a linear geometry to one O(1) and one O(9) atom. The H(2)-O(1) bond length is 1.01 Å. The H(2)-O(9) bond length is 1.58 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(2) and one O(5) atom. The H(3)-O(2) bond length is 1.01 Å. The H(3)-O(5) bond length is 1.69 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) and one O(9) atom. The H(4)-O(2) bond length is 1.01 Å. The H(4)-O(9) bond length is 1.71 Å. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(3) and one O(6) atom. The H(5)-O(3) bond length is 1.00 Å. The H(5)-O(6) bond length is 1.67 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(3) and one O(5) atom. The H(6)-O(3) bond length is 0.99 Å. The H(6)-O(5) bond length is 1.72 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(4) atom. The H(7)-O(4) bond length is 0.99 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one O(4) atom. The H(8)-O(4) bond length is 1.00 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(2) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(4) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Zn(1), 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 Zn(1), one H(3), and one H(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Zn(2), one H(5), and one H(6) atom. In the fourth O site, O(4) is bonded in a distorted water-like geometry to one Zn(2), one H(7), and one H(8) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one C(6), one H(3), and one H(6) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Zn(1), one C(6), and one H(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Zn(1) and one C(7) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(7) atom. In the ninth O site, O(9) is bonded to one Zn(2), one C(3), one H(2), and one H(4) atom to form distorted corner-sharing OZnH2C tetrahedra. Linkers: 2 [O]C(=O)c1cc([O])cc(C([O])=O)n1. Metal clusters: 3 [Zn]. The MOF has largest included sphere 1.88 A, density 2.23 g/cm3, surface area 3134.99 m2/g, accessible volume 0.07 cm3/g