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 class of molecules.
user
CC1(C)c2ccccc2-c2c3c1cccc3cc1c3ccccc3n(-c3nc(-c4ccccc4)nc(-c4cc5ccccc5c5ccccc45)n3)c21
assistant