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 electroluminescent and it impacts electron-transporting.
user
c1ccc2c(c1)oc1ccc(-c3c4ccccc4c(-c4ccc5oc6ccc(-c7cccc8c7oc7cccc(-c9c%10ccccc%10c(-c%10cccc%11oc%12ccccc%12c%10%11)c%10ccccc9%10)c78)cc6c5c4)c4ccccc34)cc12
assistant