You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a organic electroluminescent device and is electroluminescent.
user
CC(C)(C)c1cc(-c2cccc3c4c5c6cccc(C(C)(C)C)c6n6c7c(-c8cc(C(C)(C)C)cc(C(C)(C)C)c8)cccc7c(c7c8cccc(C(C)(C)C)c8n(c23)c47)c56)cc(C(C)(C)C)c1
assistant