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Santu Chakraborty, Soumen Ghosh, J. Manilla Sagar Cheemala, Jagadeesan Jayaselli, Sarbani Pal, Alok Kamur Mukherjee

Crystal and molecular structure analysis of 4-o-(4-methoxybenzoyl)-2-methyl-N-(2-pyridal)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide from laboratory X-ray powder data

Keywords: Piroxicam derivative, Supramolecular network, Ab-initio structure analysis, X-ray diffraction, Powder diffraction structure analysis

4-o-(4-methoxybenzoyl)-2-methyl-N-(2-pyridal)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide, C₂₃H₁₉N₃O₆S (I), a piroxicam derivative has been synthesized and characterized by X-ray powder structure analysis. The molecules of (I) are linked through pairs of intermolecular N–H···O and C–H···O hydrogen bonds forming centrosymmetric dimeric R₂²(14)(M) and R₂²(22)(N) rings which combine to form infinite one-dimensional MNMN… chain along the [–211] direction. The C–H···pi; (arene) hydrogen bonds interlink the parallel chains into two-dimensional sheets lying in the (102) plane. These sheets are further connected through intermolecular C–H···O and C–H···N bonds, so generating a three-dimensional framework structure in (I).

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 222, 08/2007
Pages: 437 - 442

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