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? It belongs to the organic light-emitting diode class of molecules.
user
CCCC(CC)n1c2ccccc2c2cc(-c3ccc4c5ccccc5n(-c5ccccc5)c4c3)ccc21
assistant