Sulfapyridine (cas 144-83-2) (polymorph III), Sulfapyridine (cas 144-83-2) dioxane solvate, Sulfapyridine (cas 144-83-2) tetrahydrofuran solvate and Sulfapyridine (cas 144-83-2) piperidine solvate, all at 173 K

Add time:09/28/2019    Source:infona.pl

The X‐ray crystal structures of solvates of Sulfapyridine (cas 144-83-2) have been determined to be conformational polymorphs. 4‐Amino‐N‐(1,2‐dihydropyridin‐2‐ylidene)benzenesulfonamide (polymorph III), C11H11N3O2S, (1), 4‐amino‐N‐(1,2‐dihydropyridin‐2‐ylidene)benzenesulfonamide 1,3‐dioxane monosolvate, C11H11N3O2S·C4H8O2, (2), and 4‐amino‐N‐(1,2‐dihydropyridin‐2‐ylidene)benzenesulfonamide tetrahydrofuran monosolvate, C11H11N3O2S·C4H8O, (3), crystallized as the imide form, while piperidin‐1‐ium 4‐amino‐N‐(pyridin‐2‐yl)benzenesulfonamidate, C5H12N+·C11H10N3O2S−, (4), crystallized as the piperidinium salt. The tetrahydrofuran and dioxane solvent molecules in their respective structures were disordered and were refined using a disorder model. Three‐dimensional hydrogen‐bonding networks exist in all structures between at least one sulfone O atom and the aniline N atom.

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