Theoretical study of frequency and temperature dependence of dipole-quadrupole polarizability of P-4 and adamantane
Title | Theoretical study of frequency and temperature dependence of dipole-quadrupole polarizability of P-4 and adamantane |
Publication Type | Journal Article |
Year of Publication | 2012 |
Authors | Shedge, SV, Pal, S, Koester, AM |
Journal | Chemical Physics Letters |
Volume | 552 |
Pagination | 146-150 |
Date Published | NOV |
ISSN | 0009-2614 |
Abstract | The frequency and temperature dependence of dipole-quadrupole polarizability of tetrahedral P-4 and adamantane molecules have been studied using first-principle all-electron density functional theory calculation. The recently developed time-dependent auxiliary density functional theory is extended for the calculation of dynamic dipole-quadrupole polarizabilities. Temperature effects are incorporated by Born-Oppenheimer molecular dynamics (BOMD) simulations recorded up to 100 ps. The dynamic dipole-quadrupole polarizabilities are calculated along these trajectories. The frequency and temperature effects can be significant for the accurate calculation of dipole-quadrupole polarizability. We have also identified the main reason for the observed discrepancy between experiment and theory in the case of adamantane. (c) 2012 Elsevier B.V. All rights reserved. |
DOI | 10.1016/j.cplett.2012.09.045 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 2.145 |