Density and temperature effects on relative Raman intensities in liquid toluene

✍ Scribed by Derek J. Gardiner; Nicholas A. Walker; Martin P. Dare-Edwards

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 580 KB
• Volume: 43
• Category: Article
• ISSN: 1386-1425
• DOI: 10.1016/0584-8539(87)80007-7

✦ Synopsis

Raman spectra of toluene at pressures up to 4.1 kbar and temperatures up to lOO"C, have been studied. The frequency and intensity changes of the symmetric &,) and antisymmetric (v& ring breathing vibrations have been related principally to changes in density. Increasing density at constant temperature increases I(v,,/v,,,) and increases the frequency of v6. but has little effect on the frequency of vsb. Increasing temperature at constant density decreases I(v6Jv6.) and increases the frequency of v6, but has little effect on the frequency of vbb. An explanation of the different intensity changes with density for these two bands is suggested in terms of the contrasting volume changes associated with the two modes.