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: It belongs to the light-emitting class of molecules.
user
c1ccc2c(c1)oc1c(-c3ccc(-c4ccc5ccc6c(-c7cn8ccccc8n7)ccc7ccc4c5c76)cc3)cccc12
assistant