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: It belongs to the light-emitting class of molecules.
user
c1ccc(-n2c3ccccc3c3ccc4cc5c6ccccc6n(-c6cccc(-c7cccnc7)c6)c5cc4c32)cc1
assistant