Crystal structure of 5-[2-(2,4,6-tribromophenyl)diazenyl]tropolone

Abstract

The title compound is essentially planar, with an r.m.s. deviation of 0.054 Å. The mol­ecular structure is fixed in the azo tautomer by intra­molecular C—H⋯N inter­actions, with O—H⋯O hydrogen bonds creating linked dimers. Charge-transfer inter­actions are observed, with the segregated stacks linked by Br⋯Br inter­actions.