You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? It has an effect on improved luminous efficiency.
user
c1cncc(-c2ccnc(-n3c4ccccc4c4cc5c(cc43)c3ccccc3n3c4ccccc4cc53)c2)c1
assistant