You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: It belongs to the light-emitting class of molecules.
user
CN1c2c(-c3c4ccccc4c(-c4ccc(-c5ccccc5)cc4)c4ccccc34)cccc2-n2c(-c3ccc4ccccc4c3)nc3cccc1c32
assistant