Pr3C11PNH15O23CH3CHO crystallizes in the monoclinic P2_1 space group. The structure consists of two dimethyl ether molecules inside a Pr3C11PNH15O23 framework. In the Pr3C11PNH15O23 framework, there are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(16), one O(18), one O(20), one O(21), one O(6), one O(8), and one O(9) atom. The Pr(1)-O(11) bond length is 2.49 Å. The Pr(1)-O(14) bond length is 2.55 Å. The Pr(1)-O(16) bond length is 2.55 Å. The Pr(1)-O(18) bond length is 2.50 Å. The Pr(1)-O(20) bond length is 2.47 Å. The Pr(1)-O(21) bond length is 2.52 Å. The Pr(1)-O(6) bond length is 2.51 Å. The Pr(1)-O(8) bond length is 2.58 Å. The Pr(1)-O(9) bond length is 2.52 Å. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one O(10), one O(12), one O(13), one O(14), one O(17), one O(19), one O(2), one O(5), and one O(7) atom. The Pr(2)-O(10) bond length is 2.51 Å. The Pr(2)-O(12) bond length is 2.47 Å. The Pr(2)-O(13) bond length is 2.65 Å. The Pr(2)-O(14) bond length is 2.72 Å. The Pr(2)-O(17) bond length is 2.53 Å. The Pr(2)-O(19) bond length is 2.54 Å. The Pr(2)-O(2) bond length is 2.37 Å. The Pr(2)-O(5) bond length is 2.54 Å. The Pr(2)-O(7) bond length is 2.54 Å. In the third Pr site, Pr(3) is bonded in a 9-coordinate geometry to one O(1), one O(13), one O(15), one O(22), one O(23), one O(24), one O(3), one O(7), and one O(8) atom. The Pr(3)-O(1) bond length is 2.40 Å. The Pr(3)-O(13) bond length is 2.52 Å. The Pr(3)-O(15) bond length is 2.63 Å. The Pr(3)-O(22) bond length is 2.56 Å. The Pr(3)-O(23) bond length is 2.54 Å. The Pr(3)-O(24) bond length is 2.58 Å. The Pr(3)-O(3) bond length is 2.37 Å. The Pr(3)-O(7) bond length is 2.65 Å. The Pr(3)-O(8) bond length is 2.69 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a distorted tetrahedral geometry to one P(1), one N(1), one H(10), and one H(11) atom. The C(1)-P(1) bond length is 1.85 Å. The C(1)-N(1) bond length is 1.50 Å. The C(1)-H(10) bond length is 1.10 Å. The C(1)-H(11) bond length is 1.10 Å. In the second C site, C(2) is bonded in a 3-coordinate geometry to one N(1), one H(12), and one H(13) atom. The C(2)-N(1) bond length is 1.51 Å. The C(2)-H(12) bond length is 1.10 Å. The C(2)-H(13) bond length is 1.10 Å. In the third C site, C(4) is bonded in a 3-coordinate geometry to one N(1), one H(16), and one H(17) atom. The C(4)-N(1) bond length is 1.51 Å. The C(4)-H(16) bond length is 1.10 Å. The C(4)-H(17) bond length is 1.10 Å. In the fourth C site, C(6) is bonded in a distorted bent 120 degrees geometry to 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 1.26 Å. In the fifth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(8) atom. The C(7)-O(7) bond length is 1.27 Å. The C(7)-O(8) bond length is 1.26 Å. In the sixth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(9) atom. The C(8)-O(10) bond length is 1.28 Å. The C(8)-O(9) bond length is 1.25 Å. In the seventh C site, C(9) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. The C(9)-O(11) bond length is 1.27 Å. The C(9)-O(12) bond length is 1.26 Å. In the eighth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one O(13) and one O(14) atom. The C(10)-O(13) bond length is 1.27 Å. The C(10)-O(14) bond length is 1.27 Å. In the ninth 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 1.27 Å. The C(11)-O(16) bond length is 1.26 Å. In the tenth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one O(17) and one O(18) atom. The C(12)-O(17) bond length is 1.27 Å. The C(12)-O(18) bond length is 1.27 Å. In the eleventh C site, C(13) is bonded in a distorted bent 120 degrees geometry to one O(19) and one O(20) atom. The C(13)-O(19) bond length is 1.26 Å. The C(13)-O(20) bond length is 1.26 Å. P(1) is bonded to one C(1), one O(1), one O(2), and one O(3) atom to form distorted PCO3 tetrahedra that share  a cornercorner with one N(1)HC3 tetrahedra. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.53 Å. N(1) is bonded to one C(1), one C(2), one C(4), and one H(9) atom to form NHC3 tetrahedra that share  a cornercorner with one P(1)CO3 tetrahedra. The N(1)-H(9) bond length is 1.05 Å. There are fifteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(21) atom. The H(1)-O(21) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(21) atom. The H(2)-O(21) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(22) atom. The H(3)-O(22) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(22) atom. The H(4)-O(22) bond length is 0.98 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(23) atom. The H(5)-O(23) bond length is 0.98 Å. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(18) and one O(23) atom. The H(6)-O(18) bond length is 1.63 Å. The H(6)-O(23) bond length is 1.01 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(24) atom. The H(7)-O(24) bond length is 0.97 Å. In the eighth H site, H(8) is bonded in a distorted single-bond geometry to one O(10) and one O(24) atom. The H(8)-O(10) bond length is 1.64 Å. The H(8)-O(24) bond length is 1.01 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one N(1) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(1) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(1) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(2) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(2) atom. In the fourteenth H site, H(16) is bonded in a single-bond geometry to one C(4) atom. In the fifteenth H site, H(17) is bonded in a single-bond geometry to one C(4) atom. There are twenty-three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Pr(3) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Pr(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Pr(3) and one P(1) atom. In the fourth O site, O(5) is bonded in a distorted single-bond geometry to one Pr(2) and one C(6) atom. In the fifth O site, O(6) is bonded in a distorted single-bond geometry to one Pr(1) and one C(6) atom. In the sixth O site, O(7) is bonded in a distorted single-bond geometry to one Pr(2), one Pr(3), and one C(7) atom. In the seventh O site, O(8) is bonded in a distorted single-bond geometry to one Pr(1), one Pr(3), and one C(7) atom. In the eighth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Pr(1) and one C(8) atom. In the ninth O site, O(10) is bonded in a distorted trigonal planar geometry to one Pr(2), one C(8), and one H(8) atom. In the tenth O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Pr(1) and one C(9) atom. In the eleventh O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Pr(2) and one C(9) atom. In the twelfth O site, O(13) is bonded in a distorted single-bond geometry to one Pr(2), one Pr(3), and one C(10) atom. In the thirteenth O site, O(14) is bonded in a distorted single-bond geometry to one Pr(1), one Pr(2), and one C(10) atom. In the fourteenth O site, O(15) is bonded in a single-bond geometry to one Pr(3) and one C(11) atom. In the fifteenth O site, O(16) is bonded in a distorted single-bond geometry to one Pr(1) and one C(11) atom. In the sixteenth O site, O(17) is bonded in a distorted single-bond geometry to one Pr(2) and one C(12) atom. In the seventeenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Pr(1), one C(12), and one H(6) atom. In the eighteenth O site, O(19) is bonded in a distorted single-bond geometry to one Pr(2) and one C(13) atom. In the nineteenth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Pr(1) and one C(13) atom. In the twentieth O site, O(21) is bonded in a distorted water-like geometry to one Pr(1), one H(1), and one H(2) atom. In the twenty-first O site, O(22) is bonded in a distorted water-like geometry to one Pr(3), one H(3), and one H(4) atom. In the twenty-second O site, O(23) is bonded in a water-like geometry to one Pr(3), one H(5), and one H(6) atom. In the twenty-third O site, O(24) is bonded in a water-like geometry to one Pr(3), one H(7), and one H(8) atom. Linkers: 8 [O]C(=O)C([O])=O. Metal clusters: 6 [Pr]. The MOF has largest included sphere 2.84 A, density 2.52 g/cm3, surface area 2485.00 m2/g, accessible volume 0.07 cm3/g