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 organic light-emitting device.
user
C=C(c1ccc2cc(-c3c4ccccc4c(-c4cccc5ccccc45)c4ccccc34)ccc2c1)c1cc2c(cc1-c1cc3ccccc3s1)oc1ccccc12
assistant