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 light-emitting class of molecules. Use the above information to create a molecule.
user
C1=C(c2ccccc2)SC2=C(c3ccccc3)N=C(n3c4ccc(-c5cccc6c5c5c7ccccc7ccc5n6-c5ccc6oc7ccccc7c6c5)cc4c4ccc5ccccc5c43)NC12
assistant