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)c1c2ccccc2c(-c2ccc3c(c2)sc2ccc(-c4c5ccccc5c(-c5ccccc5)c5ccccc45)cc23)c2ccccc12
assistant