You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a organic light-emitting device.
user
FC(F)(F)c1cc2nc(-c3ccccc3)c(-c3ccccc3)nc2c2c1c(-c1ccccc1-c1ccc3c4ccccc4c4ccccc4c3c1)nc1ccccc12
assistant