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 optoelectronic device that is phosphorescent and electroluminescent.
user
Cc1ccc2c(c1-c1ccc(-c3ccc(-c4ccccc4)c(-c4ccccc4)c3-c3ccccc3)cc1)Sc1ccccc1C21c2ccccc2Sc2ccccc21
assistant