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 organic light-emitting device class of molecules.
user
NC(C(=C1NC(c2ccccc2)=Cc2cc(-c3nc(-c4ccccc4)nc(-c4ccc(-n5c6ccccc6c6ccccc65)cc4)n3)ccc21)c1ccccc1)c1ccccc1
assistant