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 that fulfills the requirement: It belongs to the organic light-emitting device class of molecules.
user
CC1(C)c2ccc(-c3cccc(-c4c5ccccc5c(-c5ccccc5)c5ccccc45)c3)cc2-c2c1ccc1c2ccc2oc3ccccc3c21
assistant