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 and is light-emitting.
user
FC(F)(F)c1ccc(-c2cc(-c3nc(-c4ccccc4)cc(-c4ccccc4)n3)cc(-c3ccc(C(F)(F)F)cc3)c2-n2c3ccccc3c3cc(-c4nc(-c5ccccc5)nc(-c5ccccc5)n4)ccc32)cc1
assistant