By Richard L. McCreery
As a result of its special blend of excessive info content material and straightforwardness of use, Raman spectroscopy, which makes use of various vibrational strength degrees to excite molecules (as against gentle spectra), has attracted a lot consciousness during the last fifteen years. This publication covers all facets of contemporary Raman spectroscopy, together with its becoming use in either the laboratory and commercial research.
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Additional info for Raman Spectroscopy for Chemical Analysis
Chalmers and G. Dent, Industrial Analysis with Vibrational Spectroscopy, Royal Society of Chemistry, Cambridge, 1997. 13. J. M. Chalmers, Spectroscopy in Process Analysis, CRC Analytical Chemistry Series, Vol. 4, CRC Press, Boca Raton, FL, 1999. 14. B. Schrader, Raman and Infrared Atlas of Organic Compounds, VCH, New York, 1989. 15. F. R. Dollish, W. G. Fateley, and F. F. Bentley, Characteristic Raman Frequencies of Organic Compounds, Wiley, New York, 1974. 16. D. Lien-Vien, N. Colthup, W. G. Fateley, and J.
So the Raman scattering from a C=C bond is strong, while that of a C=O bond is relatively weak. In contrast, infrared absorption requires a dipole moment change for a given vibration to be IR active, so the C=C vibration is very weak toward IR absorption and the C=O stretch is strong. A third consequence of Eq. 5) is that Raman shifts may be both positive and negative. Since anti-Stokes Raman intensity depends on the population of the first vibrationally excited state, its intensity is related to temperature by the Boltzmann distribution, given by Eq.
G. Fateley, and J. Grasselli, Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules, Academic Press, New York, 1991. 9. K. , Wiley, New York, 1996. 10. H. W. Schriitter and H. W. Klockner, A. , Raman Spectroscopy of Gases and Liquids, lhpics in Current Physics, Vol. I I , Springer, New York, 1979, Chapter 4. 11. S. A. Asher and C. R. Johnson, J. PhJls. , 89, 1375, (1985). 12. K. T. Schomacker, J. K. Delaney, and P. M. Champion, J. Chem. , 85,4240 (1986). 13. N. Abe, M. Wakayama, and M.
Raman Spectroscopy for Chemical Analysis by Richard L. McCreery