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: It belongs to the light-emitting class of molecules.
user
Cc1nc2ccc(-c3ccc(-c4c5ccccc5c(-c5ccccc5)c5ccccc45)cc3)cc2n1C1(C)C=CC=CC1
assistant