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 light-emitting and it impacts photoelectric conversion.
user
CC1(C)c2ccccc2-c2ccc(-c3ccc4ccc5ccc(-c6cccc(-c7nc(-c8ccc(-c9cccnc9)cc8)c8ccccc8n7)c6)nc5c4n3)cc21
assistant