Acta Cryst. (2002). E58, o828-o830  [ doi:10.1107/S1600536802011716 ]

2-(2,4-Dibromophenylamino)-7-nitrobenzisoselenazol-3-one

L. Dupont, M. Messali, L. Christiaens and G. Evrard

Abstract: The crystal structure determination of the title compound, C₁₃H₇Br₂N₃O₃Se, was undertaken in the course of a study on 1,2-benzoselenazin-4-one heterocycle homologues of ebselen, a well known anti-oxidizing agent. It allowed unambiguous identification of the molecular formula of the compound. The Br atom in the 4 position is split into two sites with occupation factors of 55 and 45%. The dihedral angle between the phenyl and benzisoselenazole mean planes is 85.0 (5)°. Analysis of the crystal packing shows infinite chains of molecules along the b axis, linked together by an N-HO intermolecular hydrogen bond.

Online 12 July 2002

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