Infrared and Raman Spectroscopy: Principles and Spectral InterpretationInfrared and Raman Spectroscopy: Principles and Spectral Interpretation explains the background, core principles and tests the readers understanding of the important techniques of Infrared and Raman Spectroscopy. These techniques are used by chemists, environmental scientists, forensic scientists etc to identify unknown chemicals. In the case of an organic chemist these tools are part of an armory of techniques that enable them to conclusively prove what compound they have made, which is essential for those being used in medical applications. The book reviews basic principles, instrumentation, sampling methods, quantitative analysis, origin of group frequencies and qualitative interpretation using generalized Infrared (IR) and Raman spectra. An extensive use of graphics is used to describe the basic principles of vibrational spectroscopy and the origins of group frequencies, with over 100 fully interpreted FT-IR and FT-Raman spectra included and indexed to the relevant qualitative interpretation chapter. A final chapter with forty four unknown spectra and with a corresponding answer key is included to test the readers understanding. Tables of frequencies (peaks) for both infrared and Raman spectra are provided at key points in the book and will act as a useful reference resource for those involve interpreting spectra. This book provides a solid introduction to vibrational spectroscopy with an emphasis placed upon developing critical interpretation skills. Ideal for those using and analyzing IR and Raman spectra in their laboratories as well as those using the techniques in the field.
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Both mid-IR and Raman spectroscopy provide characteristic fundamental vibrations that are employed for the elucidation of molecular structure and are the topic of ... Raman spectroscopy is a two-photon inelastic light-scattering event.
... solutions Very good Very difficult Fair Quantitative analysis Good Good Excellent Low frequency modes Excellent Difficult No * True for FT-Raman at 1064 nm excitation. remaining energy scattered as a photon with reduced frequency.
Light scattering phenomena may be classically described in terms of electromagnetic (EM) radiation produced by oscillating ... The light scattered photons include mostly the dominant Rayleigh and the very small amount of Raman scattered ...
Wavelength (nm) Anti-Stokes Raman Scattering hc (νL–νm) hc (νL + νm) Stokes Raman Scattering 1064 1087 1042 Rayleigh Scattering hc ν E n e r g y 1 1 I n t e n s it y 0 0 200 100 0 –100 –200 (νL +ν m) FIGURE 2.10 Schematic illustration ...
Raman scattering is far less probable than Rayleigh scattering with an observed intensity that is ca. 10À6 that of the incident light for strong Raman scattering. This scattered photon results from a transition from the virtual state to ...
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Table des matières
1 | |
7 | |
27 | |
Chapter 4 Environmental Dependence of Vibrational Spectra | 55 |
Chapter 5 Origin of Group Frequencies | 63 |
Characteristic Group Frequencies | 73 |
Chapter 7 General Outline and Strategies for IR and Raman Spectral Interpretation | 117 |
Chapter 8 Illustrated IR and Raman Spectra Demonstrating Important Functional Groups | 135 |
Chapter 9 Unknown IR and Raman Spectra | 177 |
Appendix IR Correlation Charts | 213 |
Index | 217 |
Autres éditions - Tout afficher
Infrared and Raman Spectroscopy: Principles and Spectral Interpretation Peter Larkin Aucun aperçu disponible - 2017 |
Infrared and Raman Spectroscopy: Principles and Spectral Interpretation Peter J. Larkin Aucun aperçu disponible - 2011 |