You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a phosphorescent and belongs to the organic electronic device class of molecules.
user
c1ccc(-c2nc(-n3c4c5ccccc5ccc4c4c5c6ccccc6[nH]c5c5ccccc5c43)nc3oc4ccccc4c23)cc1
assistant