You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: It belongs to the phosphorescent emitter, phosphorescent, organic electroluminescent device, and electroluminescent classes of molecules.
user
c1ccc(-c2nc(-c3ccccc3)nc(C3c4ccccc4-c4ccc5c(c43)C(c3ccccc3)(c3ccccc3)c3ccccc3-5)n2)cc1
assistant