You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a member of the dielectric class and affects negative dielectric anisotropy.
user
CCCc1ccc(OCC2CCC(c3ccc(CC)c(F)c3F)CC2)c(F)c1F
assistant