You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a light-emitting member of the organic light-emitting device class.
user
CC1(C)c2ccccc2-c2ccc(N(c3ccc(-c4ccccc4)cc3)c3ccc(-c4cccc5c4-c4ccccc4C54c5ccccc5-c5c4sc4ccccc54)cc3)cc21
assistant