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 a organic electronic device that impacts luminous efficiency.
user
Cn1c2c(-c3ccccc3-c3cc(-c4ccccc4)cc(-c4ccccc4)c3)cccc2c2c1c(-c1ccccc1-c1cc(-c3ccccc3)cc(-c3ccccc3)c1)cc1c3ccccc3n(-c3ccccc3)c12
assistant