You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a organic light-emitting diode and is light-emitting. Use the above information to create a molecule.
user
c1ccc2cc(-c3nc(-c4ccc5ccccc5c4)nc(-c4cccc5oc6cc(-n7c8ccccc8c8c9ccccc9ccc87)ccc6c45)n3)ccc2c1
assistant