You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The light-emitting molecule has an effect on low driving voltage.
user
CCCCc1ccc(CCCC)c2oc(-c3ccc(-c4ccc(-c5nc6ccccc6nc5-c5ccccc5)cc4)cc3)nc12
assistant