3-Benzoyl-4-hydroxy-2H-1,2-benzothiazine 1,1-dioxide
نویسندگان
چکیده
There are two mol-ecules in the asymmetric unit of the title compound, C(15)H(11)NO(4)S. The heterocyclic thia-zine rings in both mol-ecules adopt half-chair conformations with the S and N atoms displaced by 0.455 (4) and 0.254 (4) Å, respectively, in one mol-ecule, and 0.480 (4) and 0.224 (5) Å in the other, on opposite sides of the mean planes formed by the remaining ring atoms. The crystal structure is stabilized by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds. In addition, intra-molecular O-H⋯O inter-actions are also present.
منابع مشابه
3-Benzoyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine 1,1-dioxide
In the title mol-ecule, C(16)H(13)NO(4)S, the heterocyclic thia-zine ring adopts a half-chair conformation with the S and N atoms displaced by 0.410 (3) and 0.299 (3) Å, respectively, on opposite sides of the mean plane formed by the remaining ring atoms. The crystal structure is stabilized by inter-molecular hydrogen bonds of the types O-H⋯O and C-H⋯O; the former result in dimers lying about i...
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In the title compound, C(13)H(13)NO(5)S, the thia-zine ring adopts a distorted half-chair conformation. Intra-molecular O-H⋯O and C-H⋯O hydrogen bonds give rise to two six-membered hydrogen bonded rings. In the crystal, mol-ecules are linked through weak inter-molecular C-H⋯O hydrogen bonds, resulting in a zigzag chain lying along the c axis.
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In the title compound, C(17)H(15)N(3)O(5)S, the thia-zine ring adopts a distorted half-chair conformation. The mol-ecular structure is stabilized by intra-molecular N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonding. Pairs of mol-ecules are bound together as centrosymmetric dimers through N-H⋯O hydrogen bonds.
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In the mol-ecule of the title compound, C(13)H(13)NO(6)S, the thia-zine ring adopts a distorted sofa conformation. The enolic H atom is involved in intra-molecular O-H⋯O hydrogen bonding besides the weaker C-H⋯O=S and C-H⋯O=C inter-actions.
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010