You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the organic light-emitting device class of molecules. Use the above information to create a molecule.
user
c1ccc(-c2ccccc2-c2c(-c3c4ccccc4c(-c4ccc5c(c4)oc4ccccc45)c4ccccc34)ccc3ccccc23)cc1
assistant