You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: It belongs to the light-emitting class of molecules.
user
c1ccc(-c2c3ccccc3c(-c3ccc(-n4c5ccc(-c6cc(-c7cccc8ccccc78)cc7c6sc6ccc(-c8cccc9ccccc89)cc67)cc5c5cc(-c6cc(-c7cccc8ccccc78)cc7c6sc6ccc(-c8cccc9ccccc89)cc67)ccc54)cc3)c3ccccc23)cc1
assistant