You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: It belongs to the organic light-emitting device class of molecules.
user
c1ccc(-c2cccc(-c3nc(-c4ccccc4)nc(-c4ccc5c(c4)oc4c6ccccc6c(-n6c7cc8ccccc8cc7c7cc8ccccc8cc76)cc54)n3)c2)cc1
assistant