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(-c2ccc3c(c2)sc2cc(-c4nc(-c5ccccc5)nc(-c5cccc6c5oc5c(-c7ccccc7)cccc56)n4)ccc23)cc1
assistant