You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is light-emitting.
user
c1ccc(-c2ccc(-c3ccc(N(c4ccc(-c5ccccc5)cc4)c4ccc(-c5ccccc5-c5cccc(-c6ccccc6)c5)cc4)cc3)cc2)cc1
assistant