You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: It belongs to the organic light-emitting diode class of molecules.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3ccc(-c4cccc5cc(-c6ccc(-c7cccc8cccnc78)cc6)ccc45)cc3)n2)cc1
assistant