Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 2 (February 2013)


organic compounds



lr2095 scheme

Acta Cryst. (2013). E69, o190-o191    [ doi:10.1107/S1600536812051975 ]

Ethyl 3-[6-(4-methoxybenzenesulfonamido)-2H-indazol-2-yl]propanoate monohydrate

N. Abbassi, E. M. Rakib, A. Hannioui, M. Saadi and L. El Ammari

Abstract: In the title compound, C19H21N3O5S·H2O, the central indazole system is essentially planar (r.m.s. deviation = 0.012 Å), while both the benzene ring and the mean plane defined by the non-H atoms of the ethyl propionic ester unit (r.m.s. deviation = 0.087 Å) are nearly perpendicular to the indazole plane, as indicated by the dihedral angles of 82.45 (8) and 75.62 (8)°, respectively. Consequently, the molecule adopts a U-shaped geometry. In the crystal, the water molecule, which is linked to the indazole system by a strong O-H...N hydrogen bond, is also involved in two additional N-H...O and O-H...O interactions, which link the organic molecules into chains along the b-axis direction.


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