You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the light-emitting class of molecules.
user
c1ccc(-c2nc3ccccc3n2-c2ccc(-c3c4ccccc4n4c3sc3ccccc34)cc2)cc1
assistant