You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a organic light-emitting member of the light-emitting class.
user
c1ccc2c(Nc3ccc(-n4c5ccccc5c5ccccc54)cc3)cccc2c1
assistant