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
C=C1c2ccc(-c3c4ccccc4c(-c4cccc5ccccc45)c4ccccc34)cc2OCc2ccc(-c3ccccc3)cc2-c2ccccc21
assistant