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 that impacts light emission.
user
CC1(C)c2ccccc2-c2ccc(N(c3ccccc3-c3ccc4c(c3)C3(c5ccccc5-4)c4ccccc4-n4c5ccccc5c5cccc3c54)c3cccc4c3-c3ccccc3C4(C)C)cc21
assistant