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 class of molecules.
user
Cn1c(-c2ccccc2)nc2ccc(-c3cccc4c(-c5c6ccccc6cc6ccccc56)c5cccc(-c6ccc7nc(-c8ccccc8)n(C)c7c6)c5cc34)cc21
assistant