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: The molecule is a member of the light-emitting class and affects luminous efficiency.
user
c1ccc(-c2nc(-c3cc(-c4cccnc4)cc(-c4ccc5ccccc5c4)c3)nc(-c3cccc4c3oc3ccccc34)n2)cc1
assistant