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: The molecule is a organic electroluminescent element and belongs to the electroluminescent class of molecules, impacting luminous efficiency.
user
Fc1c(F)c(F)c2c(oc3c2cc2c(F)c(F)c4c5oc6c(F)c(F)c(F)c(F)c6c5cc5c(F)c(F)c3c2c54)c1F
assistant