5,6-Di-bromo-1H-indole-2,3-dione

摘要

The title compound, C8H3Br2NO2, crystallizes with two near planar molecules in the asymmetric unit, with non-H atoms possessing mean deviations from planarity of 0.012 and 0.014 A? . The two molecules are connected by an N— HO and a C—HO hydrogen bond. In the crystal, molecules connect through a series of bifurcated N—(H,H)O hydrogen bonds, forming chains propagating along the [111] direction. The molecules are further linked through intermolecular halogen interactions, including a BrO close contact of 2.9409 (3) A? , and two C—HBr interactions of 3.777 (3) and 3.845 (3) A? . These interactions link the chains into sheets lying parallel to the (123) plane.