EuAgC20H12(NO2)4(CH3)4 crystallizes in the orthorhombic P222 space group. The structure consists of four 02329_fluka molecules inside a EuAgC20H12(NO2)4 framework. In the EuAgC20H12(NO2)4 framework, Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All Eu(1)-O(1) bond lengths are 2.34 Å. All Eu(1)-O(2) bond lengths are 2.41 Å. Ag(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. All Ag(1)-N(1) bond lengths are 2.26 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a trigonal non-coplanar geometry to one C(2) and three equivalent H(1,2,3) atoms. The C(1)-C(2) bond length is 1.51 Å. All C(1)-H(1,2,3) bond lengths are 0.98 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one O(1) atom. The C(2)-C(3) bond length is 1.42 Å. The C(2)-O(1) bond length is 1.26 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.43 Å. The C(3)-C(6) bond length is 1.43 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one O(2) atom. The C(4)-O(2) bond length is 1.24 Å. In the fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(3) and one N(1) atom. The C(6)-N(1) bond length is 1.14 Å. N(1) is bonded in a distorted bent 150 degrees geometry to one Ag(1) and one C(6) atom. H(1,2,3) is bonded in a single-bond geometry to one C(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(4) atom. Linkers: 4 CC(=O)[C](C#N)C(C)=O. Metal clusters: 1 [Eu] ,1 [Ag]. The MOF has largest included sphere 4.53 A, density 1.46 g/cm3, surface area 4136.66 m2/g, accessible volume 0.23 cm3/g