Abstract
Relative stabilities, dipole moments and response electric properties of fluorinated benzenes have been studied using Hartree–Fock (HF) and correlated second-order Møller–Plesset perturbation theory (MP2) with the Sadlej's POL basis set. At the highest MP2/POL level, on passing from benzene to hexafluorobenzene the electronic mean polarizability value increases by only 3%, whereas the difference on the polarizability anisotropy is comparatively larger (+19%). The polarizability anisotropy of fluorobenzenes depends on the fluorination, increasing progressively with the increases of the number of fluorine atoms, following a near-additive atomic contribution law. Dipole moments and first-order hyperpolarizabilities among the investigated isomers differ up to a factor of two, these properties being potentially useful to discriminate the fluorobenzene isomers. Hyperpolarizability differences between the fluorinated isomers have been elucidated using hyperpolarizability density analyses. Electron correlation effects evaluated at the MP2 level are especially important for the first-order hyperpolarizabilities, increasing the HF values by 20–30%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.