You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a light-emitting member of the organic light-emitting device class.
user
CC1(C)c2cc3ccccc3cc2-c2cc3cc(-c4ccc5c6ccccc6n(-c6cccc(-n7c8ccccc8c8ccccc87)c6)c5c4)ccc3cc21
assistant