You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic electroluminescent device and belongs to the electroluminescent class of molecules, known to have an effect on luminous efficiency and is characterized as phosphorescent.
user
OB(O)O.c1ccc(-c2ccccn2)nc1
assistant