You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a liquid crystal and a liquid crystal composition, it impacts negative dielectric anisotropy, and is dielectric.
user
C=CCCC1CCC2CC(C3CCC(COc4ccc(OCC)c(F)c4F)CC3)CCC2C1
assistant