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 organic light-emitting. Please represent the molecule in SMILES.
user
c1ccc(-c2cccc(-c3cc(-c4ccccc4)nc(-c4cccc(-c5nc6c(nc7ccccn76)c6ccccc56)c4)n3)c2)cc1
assistant