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. - Uniquely integrates discussion of IR and Raman spectra - Theory illustrated and explained with over 100 fully interpreted high quality FT-IR and FT-Raman spectra (4 cm-1 resolution) - Selected problems at the end of chapters and 44 unknown IR and Raman spectra to test readers understanding (with a corresponding answer key) |
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Résultats 1-5 sur 26
Page 1
... symmetric vibrations of non-polar groups while IR spectroscopy is best at the asymmetric vibrations of polar groups. Table 1.1 briefly summarizes some of the differences between the techniques. Infrared and Raman spectroscopy involve ...
... symmetric vibrations of non-polar groups while IR spectroscopy is best at the asymmetric vibrations of polar groups. Table 1.1 briefly summarizes some of the differences between the techniques. Infrared and Raman spectroscopy involve ...
Page 2
... Symmetric Asymmetric Comb/overtone Group Frequencies Aqueous solutions Quantitative analysis Low frequency modes Excellent Very good Good Excellent Very difficult Good Difficult Excellent Fair Fair Excellent No * True for FT-Raman at ...
... Symmetric Asymmetric Comb/overtone Group Frequencies Aqueous solutions Quantitative analysis Low frequency modes Excellent Very good Good Excellent Very difficult Good Difficult Excellent Fair Fair Excellent No * True for FT-Raman at ...
Page 9
... symmetric CH stretch of benzene. 3. CLASSICAL HARMONIC OSCILLATOR To better understand the molecular vibrations. FIGURE 2.3 Molecular motions which change distance between atoms for water and CO2 . FIGURE 2.6 Potential energy, E, versus ...
... symmetric CH stretch of benzene. 3. CLASSICAL HARMONIC OSCILLATOR To better understand the molecular vibrations. FIGURE 2.3 Molecular motions which change distance between atoms for water and CO2 . FIGURE 2.6 Potential energy, E, versus ...
Page 12
... symmetric about the equilibrium internu- clear distance, Xe . Here Xe is at the energy minimum and the force constant, K is a measure of the curvature ... symmetry , σ'ν. 12 2. BASIC PRINCIPLES 4 -Quantum mechanical harmonic oscillator.
... symmetric about the equilibrium internu- clear distance, Xe . Here Xe is at the energy minimum and the force constant, K is a measure of the curvature ... symmetry , σ'ν. 12 2. BASIC PRINCIPLES 4 -Quantum mechanical harmonic oscillator.
Page 13
... -4000 cm ̄1 , the mid - IR region is -1 4000e400 cm 1, and the far-IR region is 400e10 cm 1. Typical. Internuclear distance ( X ) Plane of symmetry , σ'ν ( reflection in molecular plane. IR ABSORPTION PROCESS 13 5 -IR absorption process.
... -4000 cm ̄1 , the mid - IR region is -1 4000e400 cm 1, and the far-IR region is 400e10 cm 1. Typical. Internuclear distance ( X ) Plane of symmetry , σ'ν ( reflection in molecular plane. IR ABSORPTION PROCESS 13 5 -IR absorption process.
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 |
Expressions et termes fréquents
400 Wavenumber cm-1 absorption Aliphatic amine anhydrides Aryl Aryl CH str aryl ring atom benzene C-O str C¼O capillary film/KBr carbon carbonyl carboxylic acid CH rk CH stretch CH₂ bend CH3 CH3 cm ¹ cm 1 involves cm 1 region cm-¹ cm¯¹ cme1 compounds deformation dimer dipole electron energy Fermi resonance FIGURE force constant FT-IR FT-Raman H₂O hydrogen bonding i.ph in-phase stretch in-plane intensity interaction IR bands KBr disc linear lone H methyl methylene molecule near-IR Neat/cap film Nujol Nujol mull o.ph observed olefinic oscillator out-of-phase stretch photon Pyridine Quadrant str radiation Raman scattered Raman spectra Raman spectroscopy refractive ring stretch rotational sample preparation Selected Group Frequencies Semi-circle str shown in Fig spectrum stretching bands stretching frequencies stretching vibrations strong IR bands strong Raman band substituent sulfonic acid symmetry technique trans typically vibrational spectroscopy wavelength Wavenumber weak