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 belongs to the electroluminescent class of molecules.
user
c1ccc(-c2nc(-n3c4ccccc4c4c5c(c6ccccc6n5-c5ccccc5)c5sc6ncccc6c5c43)nc3ccccc23)cc1
assistant