You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? When heated to decomposition it emits toxic fumes of hydrogen bromide.
user
Brc1ccc(-c2c(Br)c(Br)c(Br)c(Br)c2Br)c(Br)c1Br
assistant