You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a optoelectronic.
user
c1cc(-c2n[nH]c3ccccc23)nc(-c2n[nH]c3ccccc23)c1
assistant