You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? It belongs to the phosphorescent class of molecules.
user
c1ccc2c(c1)sc1ccc(-c3ccc4ccc(-n5c6ccccc6c6cc(-n7c8ccccc8c8ccccc87)ccc65)cc4c3)cc12
assistant