You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It belongs to the organic light-emitting class of molecules. Please represent the molecule in SMILES.
user
c1ccc2cc(-c3cc(-c4ccc(-c5nc6ccccc6c6nc7ccccn7c56)cc4)nc(-c4ccc5ccccc5c4)n3)ccc2c1
assistant