Na2ZnH2(CO)10(CH)2 crystallizes in the trigonal R-3c space group. The structure consists of thirty-six 02329_fluka molecules inside a Na2ZnH2(CO)10 framework. In the Na2ZnH2(CO)10 framework, there are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form NaO6 octahedra that share corners with two equivalent Zn(1)O4 tetrahedra. Both Na(1)-O(1) bond lengths are 2.54 Å. Both Na(1)-O(2) bond lengths are 2.36 Å. Both Na(1)-O(4) bond lengths are 2.40 Å. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(5) atoms. Both Na(2)-O(3) bond lengths are 2.54 Å. Both Na(2)-O(5) bond lengths are 2.70 Å. Zn(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form ZnO4 tetrahedra that share corners with two equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 85°. Both Zn(1)-O(1) bond lengths are 1.95 Å. Both Zn(1)-O(3) bond lengths are 1.95 Å. There are five inequivalent C sites. In the first C site, C(3) is bonded in a distorted single-bond geometry to one O(5) atom. The C(3)-O(5) bond length is 1.37 Å. In the second C site, C(5) is bonded in a distorted single-bond geometry to one C(6) and one H(2) atom. The C(5)-C(6) bond length is 1.35 Å. The C(5)-H(2) bond length is 0.93 Å. In the third C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one O(5) atom. The C(6)-C(1) bond length is 1.47 Å. The C(6)-O(5) bond length is 1.37 Å. In the fourth C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(1), and one O(2) atom. The C(1)-O(1) bond length is 1.30 Å. The C(1)-O(2) bond length is 1.23 Å. In the fifth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(2)-O(3) bond length is 1.29 Å. The C(2)-O(4) bond length is 1.23 Å. H(2) is bonded in a single-bond geometry to one C(5) atom. There are five inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to one Na(1) and one C(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Na(1), one Zn(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Na(2), one Zn(1), and one C(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Na(1) and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Na(2), one C(3), and one C(6) atom. Linkers: 36 [O]C(=O)c1ccc(C([O])=O)o1. Metal clusters: 36 [Na] ,18 [Zn]. The MOF has largest included sphere 10.79 A, density 1.06 g/cm3, surface area 3230.15 m2/g, accessible volume 0.59 cm3/g