You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: When heated to decomp ... emits toxic fumes of thallium and nitrogen oxides. The molecule has Odorless. Please represent the molecule in SMILES.
user
O=[N+]([O-])[O-].[Tl+]
assistant