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): It belongs to the organic electroluminescent device, electroluminescent, and phosphorescent classes of molecules.
user
C1=CCCC(c2cc(-c3ccccc3)cc(-n3c4c(c5ccncc53)C3C(C=C4)c4ccccc4N3c3ccccc3)c2)=C1
assistant