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(-c2cnc3c4ccccc4c4cc(-c5cccc(-c6ccc7oc8ccccc8c7c6)c5)ccc4c3n2)cc1
assistant