You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a organic light-emitting device.
user
c1ccc(-c2ccc(-c3c4ccccc4c(-c4cccc5oc6ccc(-c7c8ccccc8c(-c8ccccc8)c8ccccc78)cc6c45)c4ccccc34)cc2)cc1
assistant