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: The molecule is a organic light-emitting device.
user
CC1(C)c2ccc(-c3c4ccccc4c(-c4ccc(-c5ccccc5)cc4)c4ccccc34)cc2-c2cc3ccc4sc5ccccc5c4c3cc21
assistant