Title

First principles study of nuclear quadrupole interactions in the molecular solid BF(3) and the nature of binding between the molecules

Authors

Authors

D. N. Mahato; R. H. Pink; S. R. Badu; R. H. Scheicher; A. Dubey; H. P. Saha; L. Chow; M. K. Mahanti; M. B. Huang;T. P. Das

Comments

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Abbreviated Journal Title

Hyperfine Interact.

Keywords

nuclear quadrupole; solid BF(3); electronic structures; Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter; Physics, Nuclear

Abstract

The electronic structures and nuclear quadrupole interactions (NQI) of the (19)F* (I= 5/2) state of (19)F nucleus in solid BF(3) are studied using the first-principles Hartree-Fock-Roothaan procedure including many-body electron correlation effects. The calculated NQI parameters, (19)F* quadrupole coupling constant (e(2)qQ) and asymmetry parameter eta, were found to be in satisfactory agreement with experiment for the solid state system, which gives confidence in the reliability of the calculated electronic structures in the solid and hence the factors found to influence the binding of the molecules in the solid. It was found that the intermolecular binding energy primarily arises from Van der Waals (VDW) interactions between the molecules resulting from intermolecular many-body effects, which counteract the repulsive interactions between the molecules arising from one-electron Hartree-Fock (HF) theory.

Journal Title

Hyperfine Interactions

Volume

176

Issue/Number

1-3

Publication Date

1-1-2007

Document Type

Article; Proceedings Paper

Language

English

First Page

15

Last Page

20

WOS Identifier

WOS:000259462700003

ISSN

0304-3843

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