You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a organic light-emitting device.
user
c1ccc(-c2cccc(-c3nc(-c4ccccc4)nc(-c4ccc5oc6cccc(-c7nc(-c8ccccc8)nc8c7sc7ccccc78)c6c5c4)n3)c2)cc1
assistant