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Updated: Jul 16, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
4,5-Dibromophthalimide forms two centrosymmetric dimers, one linked by C-H...O hydrogen bonds and one by N-H...O
Craig Williamson1, William T A Harrison
1Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, Scotland.
Abstract:
In the title compound [also called 5,6-dibromoisoindole-1,3(2H)-dione], C(8)H(3)Br(2)NO(2), there are two planar molecules in the asymmetric unit. They both form inversion dimers, one via N-H...O links and one via short near-linear C-H...O links. The dimers are then linked into chains by further N-H...O hydrogen bonds.
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