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 device and phosphorescent, belonging to the electroluminescent, electronic device, organic electroluminescent, and organic electroluminescent material classes of molecules.
user
CC1(C)c2ccccc2-n2c3c1cc(-c1nc(-c4ccccc4)nc(-c4ccccc4)n1)cc3c1cn3c(c12)C(C)(C)c1ccccc1-3
assistant