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(-c3ccc4c(c3)oc3c(-c5cccc(-c6nc(-c7ccccc7)nc7c6oc6ccccc67)c5)cccc34)n2)cc1
assistant