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 has an effect on improved luminous efficiency.
user
c1ccc(-c2ccc3sc4c5ccccc5c5c(c6cc(-c7ccccc7)ccc6n5-c5cc(-c6ccccc6)nc(-c6ccccc6)n5)c4c3c2)cc1
assistant