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
CCC(C)c1cc2c(cc1C1(C)C3CC31)nc(-c1ccc(-c3ccc(-c4nc5ccccc5nc4-c4ccccc4)cc3)cc1)n2-c1ccccc1
assistant