You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: It belongs to the organic light-emitting device class of molecules. Please write the SMILES representation of it.
user
CN1C(C2=CCCCC2)=NC(c2cc(-c3ccccc3)cc(-c3cccc(-c4ccc5c6ccccc6c6ccccc6c5c4)c3)c2)=NC1c1ccccc1
assistant