You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a organic electronic device and is light-emitting. Please represent the molecule in SMILES.
user
c1ccc(-c2cccc(-c3nc(-c4ccccc4)cc(-c4cc5c6ccccc6c6c(c7ccccc7n6-c6ccccc6)c5c5ccccc45)n3)c2)cc1
assistant