You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is organic light-emitting and it impacts electron transport. Use the above information to create a molecule.
user
c1cnc2c(c1)cc(-c1ccc3oc4ccc(-c5ccc6ccc7cccc8ccc5c6c78)cc4c3c1)c1cccnc12
assistant