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—H⋯O intermolecular hydrogen bond.
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