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 organic optoelectronic device and is optoelectronic.
user
C1=CCC(C2CCC(n3c4c(c5cc(-c6ccc7c(c6)c6ccccc6n7C6=CCC(C7CC=CCC7)CC6)ccc53)C=CCC4)CC2)C=C1
assistant