Sulfapyridine (polymorph III), sulfapyridine dioxane solvate, sulfapyridine tetrahydrofuran solvate and sulfapyridine piperidine solvate, all at 173 K
The X-ray crystal structures of solvates of sulfapyridine have been determined to be conformational polymorphs. 4-Amino- N -(1,2-dihydropyridin-2-ylidene)benzenesulfonamide (polymorph III), C 11 H 11 N 3 O 2 S, (1), 4-amino- N -(1,2-dihydropyridin-2-ylidene)benzenesulfonamide 1,3-dioxane mono...
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| Veröffentlicht in: | Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2011-12, Vol.67 (Pt 12), p.o487-o491 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
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| Zusammenfassung: | The X-ray crystal structures of solvates of sulfapyridine have been determined to be conformational polymorphs. 4-Amino-
N
-(1,2-dihydropyridin-2-ylidene)benzenesulfonamide (polymorph III), C
11
H
11
N
3
O
2
S, (1), 4-amino-
N
-(1,2-dihydropyridin-2-ylidene)benzenesulfonamide 1,3-dioxane monosolvate, C
11
H
11
N
3
O
2
S·C
4
H
8
O
2
, (2), and 4-amino-
N
-(1,2-dihydropyridin-2-ylidene)benzenesulfonamide tetrahydrofuran monosolvate, C
11
H
11
N
3
O
2
S·C
4
H
8
O, (3), crystallized as the imide form, while piperidin-1-ium 4-amino-
N
-(pyridin-2-yl)benzenesulfonamidate, C
5
H
12
N
+
·C
11
H
10
N
3
O
2
S
−
, (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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| ISSN: | 0108-2701 1600-5759 |
| DOI: | 10.1107/S0108270111041825 |