You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: When heated to decomp, emits very toxic fumes of cadmium and nitrogen oxides.
user
O=[N+]([O-])[O-].O=[N+]([O-])[O-].[Cd+2]
assistant