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organic compounds
In the title compound, C10H6F2N4O2S, the urea group is essentially coplanar with the thiadiazole ring and nearly perpendicular to the benzene ring. The face-to-face distance of 3.2225 (15) Å and the centroid separation of 3.5862 (17) Å between parallel thiadiazole rings indicate the existence of π–π stacking between neighbouring molecules. There are two molecules in the asymmetric unit.
organic compounds
In the title compound, C11H9N5O5S2·C3H7NO, the urea scaffold, which adopts a planar configuration mediated by intramolecular N—H
O hydrogen bonds, is nearly coplanar with the thiadiazole ring and the benzene ring. Intermolecular paired N—HN hydrogen bonds result in the formation of an R22(6) motif. Intermolecular π–π stacking interactions are also present.
O hydrogen bonds, is nearly coplanar with the thiadiazole ring and the benzene ring. Intermolecular paired N—HN hydrogen bonds result in the formation of an R22(6) motif. Intermolecular π–π stacking interactions are also present.organic compounds
The title compound, C26H36O5, is a derivative of abietic acid formed by an endo-Diels-Alder reaction between maleic anhydride and the diene levopimaric acid ethyl ester. The two fused and unbridged cyclohexane rings have chair conformations and the anhydride ring is planar.
