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 light-emitting device that has an effect on light emission.
user
c1ccc(-c2ccc(-c3ccc(N(c4ccccc4)c4ccc(-c5ccc6c7ccccc7c7ccccc7c6c5)cc4)c(-c4ccccc4)c3)cc2-c2ccccc2)cc1
assistant