You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: It belongs to the light-emitting class of molecules.
user
c1ccc(-c2cc(-c3ccccc3)nc(-c3cccc(-c4nc5ccncc5c5c6ccccc6c6ccccc6c45)c3)n2)cc1
assistant