You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a phosphorescent member of the phosphorescent emitter class.
user
c1cc2c(cn1)C1c3cc4cscc4cc3C2c2nccnc21
assistant