PrRu2P4H6(CO8)2(CH3)2 crystallizes in the monoclinic C2/c space group. The structure consists of eight 02329_fluka molecules inside a PrRu2P4H6(CO8)2 framework. In the PrRu2P4H6(CO8)2 framework, Pr(1) is bonded in a 6-coordinate geometry to two equivalent O(3), two equivalent O(6), and two equivalent O(8) atoms. Both Pr(1)-O(3) bond lengths are 2.49 Å. Both Pr(1)-O(6) bond lengths are 2.53 Å. Both Pr(1)-O(8) bond lengths are 2.21 Å. Ru(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(5) atom. The Ru(1)-O(1) bond length is 2.07 Å. The Ru(1)-O(2) bond length is 2.06 Å. The Ru(1)-O(4) bond length is 2.02 Å. The Ru(1)-O(5) bond length is 2.07 Å. C(1) is bonded in a distorted single-bond geometry to one P(1), one P(2), and one O(7) atom. The C(1)-P(1) bond length is 1.88 Å. The C(1)-P(2) bond length is 1.91 Å. The C(1)-O(7) bond length is 1.22 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one C(1), one O(1), one O(2), and one O(3) atom to form distorted corner-sharing PCO3 tetrahedra. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.68 Å. The P(1)-O(3) bond length is 1.57 Å. In the second P site, P(2) is bonded to one C(1), one O(4), one O(5), and one O(6) atom to form distorted corner-sharing PCO3 tetrahedra. The P(2)-O(4) bond length is 1.56 Å. The P(2)-O(5) bond length is 1.60 Å. The P(2)-O(6) bond length is 1.60 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(7) atom. The H(1)-O(7) bond length is 0.88 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(8) atom. The H(2)-O(8) bond length is 0.88 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(8) atom. The H(3)-O(8) bond length is 0.89 Å. There are eight inequivalent O sites. In the first O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Ru(1) and one P(2) atom. In the second O site, O(6) is bonded in a distorted single-bond geometry to one Pr(1) and one P(2) atom. In the third O site, O(7) is bonded in a bent 120 degrees geometry to one C(1) and one H(1) atom. In the fourth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1), one H(2), and one H(3) atom. In the fifth O site, O(1) is bonded in a distorted water-like geometry to one Ru(1) and one P(1) atom. In the sixth O site, O(2) is bonded in a water-like geometry to one Ru(1) and one P(1) atom. In the seventh O site, O(3) is bonded in a distorted single-bond geometry to one Pr(1) and one P(1) atom. In the eighth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ru(1) and one P(2) atom. Linkers: 4 CC(O)(P([O])([O])=O)P([O])([O])=O. Metal clusters: 2 [Pr] ,4 [Ru]. The MOF has largest included sphere 4.65 A, density 1.69 g/cm3, surface area 2571.74 m2/g, accessible volume 0.34 cm3/g