You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic electroluminescent device and is electroluminescent.
user
c1ccc(-c2ccc(-n3c4ccccc4c4c5sc6cncnc6c5ccc43)cc2)cc1
assistant