You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a organic light-emitting device that has an effect on light emission. Use the above information to create a molecule.
user
c1ccc(-c2nc(-c3ccc4ccccc4c3)nc(-c3ccc(-n4c5cc6ccccc6cc5c5c6ccccc6ccc54)c4cccc(-c5ccccc5)c34)n2)cc1
assistant