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: The molecule is a organic light-emitting device that impacts light emission. Please write the SMILES representation of it.
user
c1ccc(-c2cc(-c3nc(-c4cccc5ccccc45)nc(-c4cccc5ccccc45)n3)cc(-c3ccc4ccccc4c3)c2-n2c3cc4ccccc4cc3c3cc4ccccc4cc32)cc1
assistant