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 liquid crystal compound and belongs to the dielectric class of molecules, impacting negative dielectric anisotropy.
user
CCCC1CCC(CCCC(=O)c2ccc(OCC)c(C(F)F)c2O)CC1
assistant