You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a organic light-emitting device that is both light-emitting and phosphorescent.
user
C1=CCCC(c2ccnc3c2ccc2c(-c4ccccc4)ccnc23)=C1
assistant