You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: It has an effect on light emission.
user
Nc1ccc2cc(-c3c4ccccc4c(-c4cccc(-c5nc6c7ccccc7c7ccccc7c6n5-c5ccccc5)c4)c4ccccc34)ccc2c1
assistant