Spectroscopic Studies and Crystal Structure of 4-(2 3-Methoxybenzylideneamino) Benzenesulfonamide

Abstract

Schiff base 4-[(2-hydroxy-3-methoxybenzylideneamino)- N-(5-methylisoxazol- 3-yl)benzene-sulfonamide has been synthesized from the reaction of 4-amino-N-(5-methylisoxazol- 3-yl)benzenesulfonamide(sulfamethoxazole) with 2-hydroxy-3-methoxybenzaldehyde. It has been characterized by elemental analysis, MS, IR, 1H NMR, 13C NMR, HETCOR and UV-Visible techniques. The structure of it also has been examined crystallographically. For the compound exist as dominant form of enol-imines in both the solid state and the solutions. It crystallizes in the monoclinic space group P2<inf>1</inf>/c with a = 8.2694(7), b = 8.3453(5), c = 26.260(2) A ̊ , b = 97.142(7)°, V = 1798.1(2) A ̊ 3, D<inf>x</inf> = 1.431 g cm-3, R<inf>1</inf> = 0.0529 and wR<inf>2</inf> = 0.1370 [I[2σ(I)], respectively. © Springer Science+Business Media, LLC 2010.