PrC15NO6 crystallizes in the triclinic P-1 space group. Pr(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. The Pr(1)-O(1) bond length is 2.49 Å. The Pr(1)-O(2) bond length is 2.50 Å. The Pr(1)-O(3) bond length is 2.53 Å. The Pr(1)-O(5) bond length is 2.42 Å. The Pr(1)-O(6) bond length is 2.41 Å. There is one shorter (2.52 Å) and one longer (2.69 Å) Pr(1)-O(4) bond length. There are fifteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(3), and one O(4) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(3) bond length is 1.28 Å. The C(1)-O(4) bond length is 1.26 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(7) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(7) bond length is 1.39 Å. In the third C site, C(3) is bonded in a bent 120 degrees geometry to one C(2) and one C(4) atom. The C(3)-C(4) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(9) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-C(9) bond length is 1.53 Å. In the fifth C site, C(5) is bonded in a bent 120 degrees geometry to one C(4) and one C(6) atom. The C(5)-C(6) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(8) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-C(8) bond length is 1.50 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one C(2) and one C(6) atom. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(5), and one O(6) atom. The C(8)-O(5) bond length is 1.26 Å. The C(8)-O(6) bond length is 1.25 Å. In the ninth C site, C(9) is bonded in a bent 120 degrees geometry to one C(4) and one N(1) atom. The C(9)-N(1) bond length is 1.49 Å. In the tenth C site, C(10) is bonded in a single-bond geometry to one C(11) and one N(1) atom. The C(10)-C(11) bond length is 1.39 Å. The C(10)-N(1) bond length is 1.34 Å. In the eleventh C site, C(11) is bonded in a bent 120 degrees geometry to one C(10) and one C(12) atom. The C(11)-C(12) bond length is 1.36 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(15) atom. The C(12)-C(13) bond length is 1.40 Å. The C(12)-C(15) bond length is 1.54 Å. In the thirteenth C site, C(13) is bonded in a bent 120 degrees geometry to one C(12) and one C(14) atom. The C(13)-C(14) bond length is 1.39 Å. In the fourteenth C site, C(14) is bonded in a single-bond geometry to one C(13) and one N(1) atom. The C(14)-N(1) bond length is 1.35 Å. In the fifteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(1), and one O(2) atom. The C(15)-O(1) bond length is 1.22 Å. The C(15)-O(2) bond length is 1.26 Å. N(1) is bonded in a trigonal planar geometry to one C(10), one C(14), and one C(9) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Pr(1) and one C(15) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Pr(1) and one C(15) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Pr(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Pr(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Pr(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Pr(1) and one C(8) atom. Linkers: 2 [O]C(=O)C1=[C][C]N([C]c2[c]c(C([O])=O)[c]c(C([O])=O)[c]2)[C]=[C]1. Metal clusters: 2 [Pr]. The MOF has largest included sphere 4.59 A, density 1.47 g/cm3, surface area 3358.32 m2/g, accessible volume 0.32 cm3/g