You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: It belongs to the organic light-emitting device class of molecules.
user
c1ccc(-c2cc(-n3c4ccccc4c4ccc(-c5ccc(-c6nnc(-c7ccccc7)o6)cc5)cc43)nc(-c3ccccc3)n2)cc1
assistant