(ZnH3(C2O)3)2In3C48N3H30O13 crystallizes in the trigonal P-31c space group. The structure consists of two ZnH3(C2O)3 clusters inside a In3C48N3H30O13 framework. In each ZnH3(C2O)3 cluster, Zn(1) is bonded in a trigonal non-coplanar geometry to three equivalent O(3) atoms. All Zn(1)-O(3) bond lengths are 1.95 Å. There are three inequivalent C sites. In the first C site, C(9) is bonded in a distorted single-bond geometry to one C(10) and one H(6) atom. The C(9)-C(10) bond length is 1.27 Å. The C(9)-H(6) bond length is 0.93 Å. In the second C site, C(10) is bonded in a trigonal planar geometry to one C(11) and two equivalent C(9) atoms. The C(10)-C(11) bond length is 1.55 Å. In the third C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(10) and two equivalent O(3) atoms. Both C(11)-O(3) bond lengths are 1.35 Å. H(6) is bonded in a single-bond geometry to one C(9) atom. O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(11) atom. In the In3C48N3H30O13 framework, In(1) is bonded to one N(1), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing InNO5 octahedra. The corner-sharing octahedral tilt angles are 60°. The In(1)-N(1) bond length is 2.16 Å. The In(1)-O(4) bond length is 2.03 Å. Both In(1)-O(1) bond lengths are 2.15 Å. Both In(1)-O(2) bond lengths are 2.15 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(3), one C(7), and one H(1) atom. The C(1)-C(3) bond length is 1.38 Å. The C(1)-C(7) 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 trigonal planar geometry to one C(4), one C(7), and one H(2) atom. The C(2)-C(4) bond length is 1.37 Å. The C(2)-C(7) bond length is 1.35 Å. The C(2)-H(2) bond length is 0.93 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(1), one C(6), and one H(3) atom. The C(3)-C(6) bond length is 1.35 Å. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(4) atom. The C(4)-C(6) bond length is 1.35 Å. The C(4)-H(4) 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(5) atom. The C(5)-N(1) bond length is 1.26 Å. The C(5)-H(5) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(3), one C(4), and one C(8) atom. The C(6)-C(8) bond length is 1.52 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(7) atom. The C(7)-C(7) bond length is 1.53 Å. In the eighth C site, C(8) is bonded in a bent 120 degrees geometry to one C(6), one O(1), and one O(2) atom. The C(8)-O(1) bond length is 1.26 Å. The C(8)-O(2) bond length is 1.25 Å. N(1) is bonded in a trigonal planar geometry to one In(1) and two equivalent C(5) atoms. There are five 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(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(5) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one In(1) and one C(8) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one In(1) and one C(8) atom. In the third O site, O(4) is bonded in a trigonal planar geometry to three equivalent In(1) atoms. Linkers: 7 [O]C(=O)c1ccc(-c2ccc(C([O])=O)cc2)cc1 ,6 [O]C(=O)c1ccncc1. Metal clusters: 2 [C]1O[Zn]2O[C]O[Zn](O1)O[C]O2 ,2 O=[C]O[In](O[C]=O)O[In](O[C]=O)O[C]=O.O=[C]O[In]O[C]=O. The MOF has largest included sphere 12.66 A, density 0.69 g/cm3, surface area 3629.60 m2/g, accessible volume 1.07 cm3/g