You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a organic electroluminescent element and is electroluminescent.
user
CC1(C)c2ccccc2-c2ccc(C(CCc3ccc(-c4ccc(-c5ccc6oc7ccc8ccccc8c7c6c5)cc4)cc3)Cc3ccc(-c4ccc(-c5ccc6oc7ccc8ccccc8c7c6c5)cc4)cc3)cc21
assistant