You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a organic electroluminescent device and belongs to the electroluminescent class of molecules.
user
Cc1ccc(-c2cc(-c3nc(-c4ccccc4)nc(-c4ccccc4)n3)cc(-c3ccnc4ccccc34)c2)cc1
assistant