You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the organic light-emitting device class of molecules. Use the above information to create a molecule.
user
O=S1(=O)Cc2cc(-c3cc(-c4ccccc4)cc(-c4ccccc4)c3)ccc2-c2cc(-c3cc(-c4cccnc4)cc(-c4cccnc4)c3)ccc2C1
assistant