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 based on this description: The molecule is a organic electroluminescent device and is electroluminescent.
user
CC(C)(C)c1cc(-c2ccccc2)nc2c1ccc1ccc(-c3ccc(-c4cccc(-c5nc(-c6ccccc6)nc(-c6ccccn6)n5)c4)cc3)nc12
assistant