FULL LONGITUDINAL ACOUSTIC MODE (LAM) SPECTRUM OF AN N-ALKANE - COMPARISON OF OBSERVED AND COMPUTED INCOHERENT INELASTIC NEUTRON-SCATTERINGSPECTRUM OF N-OCTADECANE

Authors
PARKER SF BRADEN DA TOMKINSON J HUDSON BS
Citation
Sf. Parker et al., FULL LONGITUDINAL ACOUSTIC MODE (LAM) SPECTRUM OF AN N-ALKANE - COMPARISON OF OBSERVED AND COMPUTED INCOHERENT INELASTIC NEUTRON-SCATTERINGSPECTRUM OF N-OCTADECANE, JOURNAL OF PHYSICAL CHEMISTRY B, 102(31), 1998, pp. 5955-5956
Citations number
13
Categorie Soggetti
Chemistry Physical
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
102
Issue
31
Year of publication
1998
Pages
5955 - 5956
Database
ISI
SICI code
1089-5647(1998)102:31<5955:FLAM(S>2.0.ZU;2-E
Abstract
The incoherent inelastic neutron scattering spectrum of solid n-octade cane below 600 cm(-1) is presented and compared with the results of a scaled HF ab initio calculation. Ten vibrations in the 300-550 cm(-1) region, eight of which have not been previously observed, are easily a ssigned as longitudinal acoustic modes (LAMs). On the basis of the goo d agreement between calculated and observed modes in this region, the location of the lower frequency LAMs is postulated.