You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
This molecule is a member of the organic light-emitting device class and influences electron transport. Use the above information to create a molecule.
user
c1ccc2c(c1)oc1ccc(-c3c4ccccc4c(-c4ccc5oc6cc7oc8ccccc8c7cc6c5c4)c4ccccc34)cc12
assistant