You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It has an effect on improved luminous efficiency.
user
c1ccc2cc(-c3nc(-n4c5ccccc5c5c6c7ccccc7sc6c6ccccc6c54)nc4ccccc34)ccc2c1
assistant