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 diode class of molecules. Use the above information to create a molecule.
user
c1ccc(-c2cc(C3=NC(c4ccccc4)N=C(c4cccc5ccccc45)N3)c3c(c2)sc2ccccc23)cc1
assistant