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.
user
Cc1nc2cccc3c2n1-c1ccc(-c2c4ccccc4c(-c4cccnc4)c4ccccc24)cc1N3c1ccccc1
assistant