You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: It belongs to the organic light-emitting device class of molecules.
user
C=C(C)C=C(C=C(C)C)c1cc(-c2ccc(-c3c(-c4ccccc4)nc4ccccn34)cc2)cc(-c2cc3ccccc3c3ccccc23)c1
assistant