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 electroluminescent device and is electroluminescent.
user
CC1(C)c2cc(-c3ccc4oc5ccccc5c4c3)ccc2-c2ccc(C(c3ccc(-c4ccc(-c5ccccc5)cc4)cc3)c3cc4ccccc4c4ccccc34)cc21
assistant