NaC12H8(NO3)2 crystallizes in the triclinic P-1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. Both Na(1)-O(1) bond lengths are 2.33 Å. Both Na(1)-O(4) bond lengths are 2.38 Å. Both Na(1)-O(5) bond lengths are 2.48 Å. In the second Na site, Na(2) is bonded in a square co-planar geometry to two equivalent O(3) and two equivalent O(7) atoms. Both Na(2)-O(3) bond lengths are 2.38 Å. Both Na(2)-O(7) bond lengths are 2.34 Å. In the third Na site, Na(3) is bonded in a square co-planar geometry to two equivalent O(6) and two equivalent O(9) atoms. Both Na(3)-O(6) bond lengths are 2.34 Å. Both Na(3)-O(9) bond lengths are 2.54 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 0.93 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-H(2) bond length is 0.93 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(6) atom. The C(3)-C(4) bond length is 1.35 Å. The C(3)-C(6) bond length is 1.53 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one H(3) atom. The C(4)-H(3) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. The C(5)-N(1) bond length is 1.36 Å. The C(5)-H(4) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(2), and one O(3) atom. The C(6)-O(2) bond length is 1.24 Å. The C(6)-O(3) bond length is 1.26 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(5) atom. The C(7)-N(2) bond length is 1.35 Å. The C(7)-H(5) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(9) and one H(6) atom. The C(8)-C(9) bond length is 1.39 Å. The C(8)-H(6) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(8) atom. The C(9)-C(10) bond length is 1.38 Å. The C(9)-C(12) bond length is 1.51 Å. In the tenth C site, C(10) is bonded in a single-bond geometry to one C(11), one C(9), and one H(7) atom. The C(10)-C(11) bond length is 1.37 Å. The C(10)-H(7) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(10), one N(2), and one H(8) atom. The C(11)-N(2) bond length is 1.35 Å. The C(11)-H(8) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(12)-O(5) bond length is 1.30 Å. The C(12)-O(6) bond length is 1.22 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(14), one N(3), and one H(9) atom. The C(13)-C(14) bond length is 1.36 Å. The C(13)-N(3) bond length is 1.34 Å. The C(13)-H(9) bond length is 0.93 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(13), one C(15), and one H(10) atom. The C(14)-C(15) bond length is 1.39 Å. The C(14)-H(10) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(17), and one C(18) atom. The C(15)-C(17) bond length is 1.39 Å. The C(15)-C(18) bond length is 1.50 Å. In the sixteenth C site, C(16) is bonded in a distorted trigonal planar geometry to one C(17), one N(3), and one H(11) atom. The C(16)-C(17) bond length is 1.37 Å. The C(16)-N(3) bond length is 1.40 Å. The C(16)-H(11) bond length is 0.93 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(15), one C(16), and one H(12) atom. The C(17)-H(12) bond length is 0.93 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(15), one O(8), and one O(9) atom. The C(18)-O(8) bond length is 1.27 Å. The C(18)-O(9) bond length is 1.28 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(1), one C(5), and one O(1) atom. The N(1)-O(1) bond length is 1.32 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(11), one C(7), and one O(4) atom. The N(2)-O(4) bond length is 1.32 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(13), one C(16), and one O(7) atom. The N(3)-O(7) bond length is 1.34 Å. There are twelve 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(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(10) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(11) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(13) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(14) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(16) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(17) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Na(1) and one N(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(6) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Na(2) and one C(6) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Na(1) and one N(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Na(1) and one C(12) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Na(3) and one C(12) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Na(2) and one N(3) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(18) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Na(3) and one C(18) atom. Linkers: 2 [O]C(=O)C1=C[CH]N(O[Na])C=C1.[O]C(=O)c1[c][c][n+]([O-])cc1.[O]C(=O)c1cc[n+]([O-])cc1.[O]C(=O)c1cc[n+]([O-])cc1 ,1 [O]C(=O)C1=C[CH]N(O[Na])C=C1.[O]C(=O)c1cc[n+]([O-])cc1.[O]C(=O)c1cc[n+]([O-])cc1.[O]C(=O)c1cc[n+]([O-])cc1 ,2 [O]C(=O)c1cc[n+]([O-])cc1. Metal clusters: 2 [Na]. The MOF has largest included sphere 5.56 A, density 0.91 g/cm3, surface area 5295.80 m2/g, accessible volume 0.57 cm3/g