Chemical bonds Fermi level Fluorine compounds Nuclear magnetic resonance spectroscopy Perturbation techniques Probability density function chemical binding chemical structure rotation Anomeric effects Aromatic compounds Charge transfer Density functional theory Derivatives Dielectric materials Electrons Ethylene Finite perturbation theory scheme Fluorinated pyridines Fluorine Hydrocarbons, Fluorinated Hydrogen bonds Magnetic Resonance Spectroscopy Magnetic couplings Magnetization Moieties Molecular physics Molecular structure Naphthalenes Organic solvents