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 that fulfills the requirement: This molecule is a member of the light-emitting class and influences luminous efficiency.
user
c1ccc(-c2cc(-c3cccnc3)cc(-c3cc(-c4cccc5c4oc4ccccc45)nc(-c4ccccc4)n3)c2)cc1
assistant