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 high luminous efficiency classes of molecules.
user
c1ccc(-c2ccc(-c3ccc(N(c4ccc(-c5ccc(-c6ccccc6)cc5)cc4)c4ccc(-c5ccc(-c6ccccc6)s5)cc4)cc3)cc2)cc1
assistant