You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is phosphorescent.
user
c1ccc(-c2cccc(-c3cccc4c3oc3c4ccc4c3c3ccccc3n4-c3cccc4c3oc3ccccc34)c2)cc1
assistant