Infrared and Raman Spectroscopy: Principles and Spectral InterpretationElsevier, 13 juil. 2011 - 230 pages Infrared 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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... stretch (str) highest frequencies (3700e2500 cmÀ1) • XhY stretch, and cumulated double bonds X1⁄4Y1⁄4Z asymmetric stretch ... vibrations as simple, uncoupled oscillators (with the exception of the cumulated double bonds). The actual ...
... stretch. C≡CH Arom-H C=CH2 C=CH RCH3 Arom-CH3 RCH2 R ROCH3 R2NCH3 O=CH FIGURE 1.2 The correlation chart for CH3, CH2, and CH stretch IR bands. a resonance occurred and the model responded by exhibiting one of the internal vibrations of ...
... vibrations include an in-phase and out-of-phase stretch and a deformation (bending) vibration. Simple examples of 3n À 5 linear molecules include H2, N2, and O2 which all have 3(2) À 5 1⁄4 1 degree of freedom. The only vibration for ...
... vibration for a simple diatomic such as HCl and a more complex totally symmetric CH stretch of benzene. 3. CLASSICAL HARMONIC OSCILLATOR To better understand the molecular vibrations. (a). Diatomic Stretch position of Displacement ...
Principles and Spectral Interpretation Peter Larkin. Center of symmetry Totally symmetric vibration Asymmetric H H H H C C C O O O O O O vibration ... stretching vibrations above are symmetric with respect to the center of symmetry. Some IR ...
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 |