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: The molecule is a light-emitting device and belongs to the organic light-emitting class of molecules.
user
c1ccc(-c2cc(-c3cccc4c3-c3c(-c5ccc(-c6cccc7cccnc67)cc5)cccc3C43c4ccccc4Oc4ccccc43)nc(-c3ccccc3)n2)cc1
assistant