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
Cc1cccc2oc3ccc(-c4ccc5c(-c6ccccc6)cc6ccc(-c7ccc8c(c7)c7ccccc7n8-c7ccccc7)cc6c5c4)cc3c12
assistant