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 organic light-emitting class of molecules.
user
c1ccc(-c2nc3ccccc3n2-c2cccc(-c3cccc(-c4cc5c(-c6ccc7ccccc7c6)nc6ccccc6c5c5ccccc45)c3)c2)cc1
assistant