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: The molecule is a organic light-emitting device.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3c4nc(-c5ccc6oc7ccccc7c6c5)sc4cc4oc5ccccc5c34)n2)cc1
assistant