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
c1ccc2cc3c(cc2c1)c1cc2ccccc2cc1n3-c1ccc(-c2nc(-c3cccc4ccccc34)nc(-c3cccc4ccccc34)n2)cc1-c1ccc2c(c1)sc1ccccc12
assistant