Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

The quantum mechanical lattice dynamics formalism developed in the preceding paper for molecular solids is applied to the librational modes at k=0 in solid α-N2, CO2, and o-H2, interacting through a quadrupole-quadrupole potential. Librational wavefunctions are constructed for α-N2 and CO2, and free rotor wavefunctions were used for librons in solid o-H2. It is found that the quantum-mechanical lattice frequencies provide nonnegligible, though not dramatic, corrections to the frequencies calculated in the classical harmonic approximation. For α-N2 the quadrupole potential provides a satisfactory description of the anisotropic potential, with the quantum-mechanical frequencies significantly closer to experiment than the classical ones. For CO2 the quadrupole potential provides only part of the anisotropic potential.

Authors 2
  1. Nathan Jacobi (first)
  2. O. Schnepp (additional)
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Dates
Type When
Created 21 years, 6 months ago (Feb. 6, 2004, 4:02 p.m.)
Deposited 1 year, 6 months ago (Feb. 9, 2024, 5:33 a.m.)
Indexed 1 year, 6 months ago (Feb. 9, 2024, 3:05 p.m.)
Issued 52 years, 11 months ago (Sept. 15, 1972)
Published 52 years, 11 months ago (Sept. 15, 1972)
Published Print 52 years, 11 months ago (Sept. 15, 1972)
Funders 0

None

@article{Jacobi_1972, title={Quantum Lattice Dynamics of Molecular Solids. II. Application to the Librations of Solid CO2, α-N2, and o-H2}, volume={57}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1678618}, DOI={10.1063/1.1678618}, number={6}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Jacobi, Nathan and Schnepp, O.}, year={1972}, month=sep, pages={2516–2525} }