You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the organic electroluminescent device, electroluminescent, and high luminous efficiency classes of molecules and has an effect on organic electroluminescence.
user
c1ccc(-n2c3ccccc3c3cc(-c4cccc5c4oc4cc6c(cc45)oc4c(-c5ccc7c(c5)c5ccccc5n7-c5ccccc5)cccc46)ccc32)cc1
assistant