You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a organic light-emitting device.
user
c1ccc(-c2ccc(-n3c4ccccc4c4cc(-c5cc(-c6ccc7c(c6)c6ccccc6n7-c6ccccc6)cc6sc7ccccc7c56)ccc43)cc2)cc1
assistant