Ag15(C2O3)8(CF2)12 crystallizes in the orthorhombic Pmn2_1 space group. The structure consists of twenty-four difluoromethane molecules inside a Ag15(C2O3)8 framework. In the Ag15(C2O3)8 framework, there are eleven inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one C(13), one O(3), one O(6), and one O(9) atom. The Ag(1)-C(13) bond length is 2.37 Å. The Ag(1)-O(3) bond length is 2.40 Å. The Ag(1)-O(6) bond length is 2.46 Å. The Ag(1)-O(9) bond length is 2.39 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one C(14), one O(12), and one O(7) atom. The Ag(2)-C(14) bond length is 2.15 Å. The Ag(2)-O(12) bond length is 2.64 Å. The Ag(2)-O(7) bond length is 2.46 Å. In the third Ag site, Ag(3) is bonded in a 4-coordinate geometry to one C(15), one O(12), one O(2), and one O(7) atom. The Ag(3)-C(15) bond length is 2.34 Å. The Ag(3)-O(12) bond length is 2.40 Å. The Ag(3)-O(2) bond length is 2.45 Å. The Ag(3)-O(7) bond length is 2.35 Å. In the fourth Ag site, Ag(4) is bonded in a 3-coordinate geometry to one C(16), one O(3), and one O(9) atom. The Ag(4)-C(16) bond length is 2.28 Å. The Ag(4)-O(3) bond length is 2.33 Å. The Ag(4)-O(9) bond length is 2.60 Å. In the fifth Ag site, Ag(5) is bonded in a 3-coordinate geometry to one C(13) and two equivalent O(5) atoms. The Ag(5)-C(13) bond length is 2.11 Å. Both Ag(5)-O(5) bond lengths are 2.28 Å. In the sixth Ag site, Ag(6) is bonded in a 6-coordinate geometry to one C(13), one C(14), two equivalent O(10), and two equivalent O(8) atoms. The Ag(6)-C(13) bond length is 2.61 Å. The Ag(6)-C(14) bond length is 2.55 Å. Both Ag(6)-O(10) bond lengths are 2.48 Å. Both Ag(6)-O(8) bond lengths are 2.49 Å. In the seventh Ag site, Ag(7) is bonded in a 3-coordinate geometry to one C(13) and two equivalent O(1) atoms. The Ag(7)-C(13) bond length is 2.24 Å. Both Ag(7)-O(1) bond lengths are 2.49 Å. In the eighth Ag site, Ag(8) is bonded in a 3-coordinate geometry to one C(15) and two equivalent O(1) atoms. The Ag(8)-C(15) bond length is 2.16 Å. Both Ag(8)-O(1) bond lengths are 2.31 Å. In the ninth Ag site, Ag(9) is bonded in a 5-coordinate geometry to one C(15), two equivalent O(11), and two equivalent O(4) atoms. The Ag(9)-C(15) bond length is 2.49 Å. Both Ag(9)-O(11) bond lengths are 2.58 Å. Both Ag(9)-O(4) bond lengths are 2.40 Å. In the tenth Ag site, Ag(10) is bonded in a 3-coordinate geometry to one C(15) and two equivalent O(5) atoms. The Ag(10)-C(15) bond length is 2.36 Å. Both Ag(10)-O(5) bond lengths are 2.42 Å. In the eleventh Ag site, Ag(11) is bonded in a single-bond geometry to one C(16) atom. The Ag(11)-C(16) bond length is 2.20 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.24 Å. In the second C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(4)-O(3) bond length is 1.26 Å. The C(4)-O(4) bond length is 1.22 Å. In the third C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(5)-O(5) bond length is 1.25 Å. The C(5)-O(6) bond length is 1.23 Å. In the fourth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(7) and one O(8) atom. The C(8)-O(7) bond length is 1.23 Å. The C(8)-O(8) bond length is 1.26 Å. In the fifth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(9) atom. The C(9)-O(10) bond length is 1.23 Å. The C(9)-O(9) bond length is 1.27 Å. In the sixth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. The C(12)-O(11) bond length is 1.24 Å. The C(12)-O(12) bond length is 1.23 Å. In the seventh C site, C(13) is bonded in a 6-coordinate geometry to one Ag(5), one Ag(6), one Ag(7), two equivalent Ag(1), and one C(14) atom. The C(13)-C(14) bond length is 1.21 Å. In the eighth C site, C(14) is bonded in a 3-coordinate geometry to one Ag(6), two equivalent Ag(2), and one C(13) atom. In the ninth C site, C(15) is bonded in a distorted octahedral geometry to one Ag(10), one Ag(8), one Ag(9), two equivalent Ag(3), and one C(16) atom. The C(15)-C(16) bond length is 1.22 Å. In the tenth C site, C(16) is bonded in a 4-coordinate geometry to one Ag(11), two equivalent Ag(4), and one C(15) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ag(7), one Ag(8), and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ag(3) and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Ag(1), one Ag(4), and one C(4) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ag(9) and one C(4) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Ag(10), one Ag(5), and one C(5) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Ag(1) and one C(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ag(2), one Ag(3), and one C(8) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Ag(6) and one C(8) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Ag(1), one Ag(4), and one C(9) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Ag(6) and one C(9) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Ag(9) and one C(12) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Ag(2), one Ag(3), and one C(12) atom. Linkers: 12 [O]C(=O)C(F)(F)C(F)(F)C([O])=O. Metal clusters: 30 [Ag]. The MOF has largest included sphere 4.73 A, density 3.11 g/cm3, surface area 1837.46 m2/g, accessible volume 0.10 cm3/g