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 luminous efficiency.
user
c1ccc(-c2ccc3c(c2)sc2c3cc3c(-c4ccccc4)cc4c5sc6cc(-c7ccccc7)ccc6c5cc5c(-c6ccccc6)cc2c3c54)cc1
assistant