You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: It belongs to the organic light-emitting device class of molecules.
user
Cc1c(C)n(-c2ccc3c(c2)C(C)(C)c2ccccc2-3)c2cc3ccc4cc(-c5ccc6ccccc6c5)ccc4c3cc12
assistant