You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a optoelectronic and belongs to the organic light-emitting device, organic optoelectronic device, and light-emitting classes of molecules.
user
c1ccc(-c2ccc(-c3nc(-c4ccccc4)nc(-c4ccc5ccc6c7ccccc7n(-c7ccccc7)c6c5c4)n3)cc2)cc1
assistant