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 phosphorescent. Please write the SMILES representation of it.
user
c1cc(-c2cccc(-n3c4ccccc4c4ccccc43)c2)cc(-c2ccc3c(c2)oc2cccnc23)c1
assistant