You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a organic light-emitting diode and belongs to the optoelectronic, organic optoelectronic device, and high luminous efficiency classes of molecules.
user
c1ccc(-c2cc(-c3ccccc3)nc(-c3ccc(-c4cc(-c5ccc6ccccc6c5)c5cc(-c6ccc7ccccc7c6)c6ccccc6c5n4)cc3)c2)cc1
assistant