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 organic electroluminescent device class of molecules; it is phosphorescent and electroluminescent.
user
Clc1nc(Cl)c2[nH]c3ccccc3c2n1
assistant