NMR for Physical and Biological Scientists / Thomas C. Pochapsky.
"Nuclear Magnetic Resonance spectroscopy is a dynamic way for scientists of all kinds to investigate the physical, chemical, and biological properties of matter. Its many applications make it a versatile tool previously subject to monolithic treatment in reference-style texts. Based on a course...
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| Format: | eBook |
| Language: | English |
| Published: |
London :
Taylor and Francis,
2006.
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| Edition: | First edition. |
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Table of Contents:
- Cover; Half Title; Title Page; Copyright Page; Dedication; Table of Contents; Preface; Symbols and fundamental constants; 1: What is spectroscopy?; A semiclassical description of spectroscopy; Damped harmonics; Quantum oscillators; The spectroscopic experiment; Ensembles and coherence; Types of spectroscopy; Practical considerations in spectroscopy; Acquiring a spectrum; Resolution: the problem of line width; Line shape; Problems; 2: Elementary aspects of NMR: I. Introduction to spins, ensemble behavior and coupling; Nuclear and electronic spin; The quantum picture of nuclear spin.
- The "spinning top" model of nuclear spinSpin-state populations in ensembles; Information available from NMR: 1. Nuclear shielding and chemical shift; Information available from NMR: 2. Scalar coupling; Information available from NMR: 3. Dipolar coupling; Information available from NMR: 4. Dynamics; J-coupling time scale, decoupling experiments and exchange decoupling; Interaction between nuclear spins and radio-frequency (RF) EMR: 1. RF decoupling; Problems; 3: Elementary aspects of NMR: II. Fourier transform NMR.
- Interaction between nuclear spins and RF: 2. A single spin in the rotating frame of referenceInteraction between nuclear spins and RF: 3. An ensemble of spins in the rotating frame of reference; Detection of an NMR signal; Time-domain detection in the NMR experiment: the free induction decay and quadrature detection; Digitization of the free induction decay; Fourier transformation: time-domain FID to frequency-domain spectrum; Discrete Fourier transformation; Spectral phasing; RF pulses and pulse phase; Pulse power and off-resonance effects from RF pulses.
- Phase cycling: improved quadrature detection using CYCLOPSFactors affecting spectral quality and appearance: shimming, window functions and apodization; After the fact: window functions and zero filling; Linear prediction; Problems; References; 4: Nuclear spin relaxation and the nuclear Overhauser effect; Longitudinal (T1) relaxation and the sensitivity of the NMR experiment; Transverse (T2) relaxation and the spin-echo experiment; Chemical shift and J-coupling evolution during the spin echo; Mechanisms of nuclear spin relaxation in liquids and the spectral density function.
- Dipolar relaxation and the nuclear Overhauser effectNOE measurements, indirect NOEs and saturation transfer; Heteronuclear NOE and the Solomon equation; Other contributions to T1 relaxation: chemical shift anisotropy, spin-rotation and paramagnetic effects; Quadrupolar relaxation; Selective and nonselective T1 measurement and multi-exponential decay of coherence; Problems; References; 5: Classical and quantum descriptions of NMR experiments in liquids; The classical approach: the Bloch equations of motion for macroscopic magnetization; Classical description of a pulsed NMR experiment.