You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: It belongs to the light-emitting class of molecules.
user
C1=Cc2c(c3ccccc3n2-c2nc(-n3c4ccccc4c4ccccc43)c(-n3c4ccccc4c4ccccc43)c(-c3cc(-c4ccccc4)cc(-c4ccccc4)n3)c2-n2c3c(c4ccccc42)CCC=C3)CC1
assistant