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 member of the organic light-emitting device class and affects electron transport.
user
c1ccc(-c2ccc(-c3cc(-c4ccccc4)cc(-n4c5ccccc5c5cc6oc7ccccc7c6cc54)c3)cc2)cc1
assistant