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
Cc1c(C)n(-c2c3ccccc3c(-c3ccccc3)c3ccccc23)c2cc3c(C(C)(C)C)c4ccccc4c(C(C)(C)C)c3cc12
assistant