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(-c2cc(-c3ccccc3)nc(-c3cccc(-c4cccc5c4-c4ccccc4C54c5cccc6ccc7cccc4c7c56)c3)c2)cc1
assistant