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 light-emitting member of the organic light-emitting class.
user
c1ccc2cc(-c3nc(-c4ccc5ccccc5c4)nc(-c4cc5ccccc5c5c4c(-c4ccc6ccccc6c4)nc4ccccc45)n3)ccc2c1
assistant