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 is electroluminescent.
user
c1ccc(-n2c3ccc(-c4ccc5c(c4)c4ccccc4n5-c4ccc5ccccc5c4)cc3c3c2ccc2c4ccccc4n(-c4ccccc4)c23)cc1
assistant