You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a phosphorescent emitter and belongs to the phosphorescent class of molecules.
user
c1ccc2cc(-n3c4ccccc4c4cc(-c5ccc6c(c5)c5ccccc5n6-c5ccc6c(c5)c5ccccc5n6-c5ccc6ccccc6c5)ccc43)ccc2c1
assistant