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 organic light-emitting device and belongs to the organic light-emitting class of molecules.
user
c1ccc(-c2ccc3ccc(-c4ccc5ccc6c(c5c4)c4ccccc4n6-c4cc(-c5ccccc5)nc(-c5ccccc5)n4)cc3c2)cc1
assistant