You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the organic light-emitting class of molecules. Use the above information to create a molecule.
user
CC1C=Cc2c(nc3c(ccc4cccnc43)c2-c2ccc3c(c2)=CCC(Br)C=3)C1
assistant