You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a dielectric, a liquid crystal compound, and a liquid crystal display device, and it impacts negative dielectric anisotropy. Use the above information to create a molecule.
user
CCCCCC1CC=C(COc2ccc(OCC)c(F)c2F)CO1
assistant