You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a phosphorescent emitter and belongs to the electroluminescent, organic electroluminescent device, and phosphorescent classes of molecules.
user
O=c1c2ccccc2c2ccc(-c3cccc(-c4cccc(-n5c6ccccc6c6cc7sc8ccccc8c7cc65)c4)c3)c3c4ccccc4n1c23
assistant