You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the light-emitting class of molecules.
user
C1=CC2c3ccccc3N(c3ccc(C4=CC(c5cccc(-c6cnc7c8ccccc8c8ccccc8c7n6)c5)=CCC4)cc3)C2C=C1
assistant