SrC5H7(NO2)3 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 8-coordinate geometry to one N(2), one O(4), one O(5), one O(6), two equivalent O(1), and two equivalent O(2) atoms. The Sr(1)-N(2) bond length is 2.76 Å. The Sr(1)-O(4) bond length is 2.62 Å. The Sr(1)-O(5) bond length is 2.58 Å. The Sr(1)-O(6) bond length is 2.58 Å. There is one shorter (2.55 Å) and one longer (2.72 Å) Sr(1)-O(1) bond length. There is one shorter (2.50 Å) and one longer (2.72 Å) Sr(1)-O(2) bond length. There are five inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(1) atom. The C(1)-N(1) bond length is 1.35 Å. The C(1)-N(2) bond length is 1.33 Å. The C(1)-H(1) bond length is 1.08 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(2) and one N(3) atom. The C(2)-N(2) bond length is 1.37 Å. The C(2)-N(3) bond length is 1.34 Å. In the third C site, C(3) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(2), and one H(3) atom. The C(3)-N(1) bond length is 1.45 Å. The C(3)-H(2) bond length is 1.10 Å. The C(3)-H(3) bond length is 1.10 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(4)-O(1) bond length is 1.27 Å. The C(4)-O(2) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to 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 1.28 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(3) atom. The N(1)-N(3) bond length is 1.36 Å. In the second N site, N(2) is bonded in a distorted water-like geometry to one Sr(1), one C(1), and one C(2) atom. In the third N site, N(3) is bonded in a distorted water-like geometry to one C(2) and one N(1) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(3) and one O(6) atom. The H(4)-O(3) bond length is 1.70 Å. 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(5) atom. The H(5)-O(5) bond length is 0.98 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(6) atom. The H(6)-O(6) bond length is 0.99 Å. In the seventh H site, H(7) is bonded in a distorted single-bond geometry to one O(4) and one O(5) atom. The H(7)-O(4) bond length is 1.68 Å. The H(7)-O(5) bond length is 1.00 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one C(4) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one C(4) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one C(5) and one H(4) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1), one C(5), and one H(7) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Sr(1), one H(5), and one H(7) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Sr(1), one H(4), and one H(6) atom. Linkers: 2 [O]C(=O)CN1[CH]N=C(C([O])=O)[N]1 ,2 [O]C(=O)Cn1cnc(C([O])=O)n1. Metal clusters: 4 [Sr]. The MOF has largest included sphere 1.83 A, density 2.19 g/cm3, surface area 3181.62 m2/g, accessible volume 0.06 cm3/g