You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It has an effect on luminous efficiency.
user
c1ccc(-c2nc(-c3ccc(-c4ccc5ccc6c7ccccc7ccc6c5c4)cc3)nc(-c3ccc4ccccc4c3)n2)cc1
assistant