The imide tautomer of sulfasalazine

被引：27
作者：
Blake, AJ
Lin, X
Schröder, M
Wilson, C
Yuan, RX
机构：
[1] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
[2] Changshu Coll, Dept Chem, Changshu 215500, Peoples R China
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2004年 / 60卷
关键词：
D O I：
10.1107/S0108270104003026
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The title compound, 5-{4-[(2-pyridylideneamino) sulfonyl]phenyldiazenyl} salicylic acid, C18H14N4O5S, crystallizes as the imide tautomer in the monoclinic space group P2(1)/c. In addition to an intramolecular O-H...O hydrogen bond, intermolecular O-H...O interactions link adjacent molecules into helices, which are connected by pairwise N-H...N interactions into two-dimensional hydrogen-bonded layers. Both the molecular conformation and the packing differ from those seen in the triclinic amide form [Filip et al. (2001). Acta Cryst. C57, 435 - 436].
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收藏
页码：O226 / O228
页数：3
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