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4-Hy-droxy-2-methyl-1,1-dioxo-2H-1?,2- benzothia-zine-3-carb-oxy-lic acid hemihydrate.


ABSTRACT: In the title compound, C(10)H(9)NO(5)S·0.5H(2)O, two geometrically different organic mol-ecules are present. The benzene rings and the carboxyl-ate groups are oriented at dihedral angles of 13.44?(4) and 21.15?(18)°. In both mol-ecules, an intra-molecular O-H?O hydrogen bond generates an S(6) ring. In the crystal, both moleucles form inversion dimers linked by pairs of O-H?O hydrogen bonds to generate R(2) (2)(8) loops. The dimers are consolidated into chains extending along [100] by bridging O-H?O hydrogen bonds from the water mol-ecule. A weak C-H?O hydrogen bond also occurs.

SUBMITTER: Aman F 

PROVIDER: S-EPMC3295419 | biostudies-literature | 2012 Mar

REPOSITORIES: biostudies-literature

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4-Hy-droxy-2-methyl-1,1-dioxo-2H-1λ,2- benzothia-zine-3-carb-oxy-lic acid hemihydrate.

Aman Farhana F   Siddiqui Waseeq Ahmad WA   Ashraf Adnan A   Tahir M Nawaz MN  

Acta crystallographica. Section E, Structure reports online 20120204 Pt 3


In the title compound, C(10)H(9)NO(5)S·0.5H(2)O, two geometrically different organic mol-ecules are present. The benzene rings and the carboxyl-ate groups are oriented at dihedral angles of 13.44 (4) and 21.15 (18)°. In both mol-ecules, an intra-molecular O-H⋯O hydrogen bond generates an S(6) ring. In the crystal, both moleucles form inversion dimers linked by pairs of O-H⋯O hydrogen bonds to generate R(2) (2)(8) loops. The dimers are consolidated into chains extending along [100] by bridging O-  ...[more]

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