You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a organic light-emitting device.
user
c1ccc2cc(-c3c4ccccc4c(-c4ccc(-c5ccc6cc7c(cc6c5)oc5c7ccc6sc7ccccc7c65)c5ccccc45)c4ccccc34)ccc2c1
assistant