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 high luminous efficiency, electroluminescent, and organic electroluminescent compound.
user
Cc1ccc(-c2nc(-c3ccc(C)cc3)nc(-n3c4ccc(-n5c6ccc(-c7cccc8ccccc78)cc6c6cc(-c7cccc8ccccc78)ccc65)cc4c4cc(-n5c6ccc(-c7cccc8ccccc78)cc6c6cc(-c7cccc8ccccc78)ccc65)ccc43)n2)cc1
assistant