You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It has an effect on improved luminous efficiency. Use the above information to create a molecule.
user
c1ccc(-c2ccc3c(c2)sc2c(-c4nc(-c5ccccc5)nc(-c5cccc6c5oc5ccc(-c7ccccc7)cc56)n4)cccc23)cc1
assistant