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Dynamic NMR Spectroscopy

Dynamic NMR Spectroscopy
Author:
Publisher: Springer Science & Business Media
Total Pages: 220
Release: 2012-12-06
Genre: Science
ISBN: 3642669611

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Since the first successful NMR experiments in 1946 it was well appreciated that dynamic processes play an important role in the NMR spectroscopy of bulk matter [1]. Early theories on the dependence of the relaxation parameters Tl and T2 on the motions of nuclear spins were successful in explaining the dipolar broadening of the NMR signal in solids and the motional narrowing in liquids [2]. With the discovery of chemical shifts and spin-spin couplings another type of dynamical process affect ing the NMR line shape became apparent, the chemical exchange. As a consequence, dynamical NMR studies split into two groups differing not only in the dynamical topics but also in the method of investigation: physical studies of the motion of spins in liquids and solids by measurement of the relaxation times of single resonances and, on the other hand, chemical studies based on band shape analysis of NMR spectra recorded under steady state conditions. The two fields of research lost some of their basic differences with the development of the Fourier transform NMR method [3], which allows the measurement of relaxation times of different resonances at the same time, i. e. the study of differential motional behavior of different parts of mole cules, thus providing a new tool in conformational analyses. For example, informa tion can be obtained by this method on the relative importance of overall motions and internal motions [4].


Dynamic NMR Spectroscopy

Dynamic NMR Spectroscopy
Author: J. Sandström
Publisher:
Total Pages: 246
Release: 1982
Genre: Science
ISBN:

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Applications of Nuclear Magnetic Resonance Spectroscopy in Organic Chemistry

Applications of Nuclear Magnetic Resonance Spectroscopy in Organic Chemistry
Author: Lloyd Miles Jackman
Publisher: Pergamon
Total Pages: 456
Release: 1978
Genre: Chemistry, Organic
ISBN: 9780080229539

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Applications of Nuclear Magnetic Resonance Spectroscopy in Organic Chemistry, Second Edition focuses on the applications of nuclear magnetic resonance spectroscopy to problems in organic chemistry and the theories involved in this kind of spectroscopy. The book first discusses the theory of nuclear magnetic resonance, including dynamic and magnetic properties of atomic nuclei, nuclear resonance, and relaxation process. The manuscript also examines the experimental method. Topics include experimental factors that influence resolution and the shapes of absorption lines; measurement of line posit...


Spin Dynamics

Spin Dynamics
Author: Malcolm H. Levitt
Publisher: John Wiley & Sons
Total Pages: 824
Release: 2013-05-20
Genre: Science
ISBN: 1118681843

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Spin Dynamics: Basics of Nuclear Magnetic Resonance, Second Edition is a comprehensive and modern introduction which focuses on those essential principles and concepts needed for a thorough understanding of the subject, rather than the practical aspects. The quantum theory of nuclear magnets is presented within a strong physical framework, supported by figures. The book assumes only a basic knowledge of complex numbers and matrices, and provides the reader with numerous worked examples and exercises to encourage understanding. With the explicit aim of carefully developing the subject from the beginning, the text starts with coverage of quarks and nucleons and progresses through to a detailed explanation of several important NMR experiments, including NMR imaging, COSY, NOESY and TROSY. Completely revised and updated, the Second Edition features new material on the properties and distributions of isotopes, chemical shift anisotropy and quadrupolar interactions, Pake patterns, spin echoes, slice selection in NMR imaging, and a complete new chapter on the NMR spectroscopy of quadrupolar nuclei. New appendices have been included on Euler angles, and coherence selection by field gradients. As in the first edition, all material is heavily supported by graphics, much of which is new to this edition. Written for undergraduates and postgraduate students taking a first course in NMR spectroscopy and for those needing an up-to-date account of the subject, this multi-disciplinary book will appeal to chemical, physical, material, life, medical, earth and environmental scientists. The detailed physical insights will also make the book of interest for experienced spectroscopists and NMR researchers. • An accessible and carefully written introduction, designed to help students to fully understand this complex and dynamic subject • Takes a multi-disciplinary approach, focusing on basic principles and concepts rather than the more practical aspects • Presents a strong pedagogical approach throughout, with emphasis placed on individual spins to aid understanding • Includes numerous worked examples, problems, further reading and additional notes Praise from the reviews of the First Edition: "This is an excellent book... that many teachers of NMR spectroscopy will cherish... It deserves to be a ‘classic’ among NMR spectroscopy texts." NMR IN BIOMEDICINE "I strongly recommend this book to everyone...it is probably the best modern comprehensive description of the subject." ANGEWANDTE CHEMIE, INTERNATIONAL EDITION


Physico-chemical Applications Of Nmr: A Practical Guide

Physico-chemical Applications Of Nmr: A Practical Guide
Author: Andrei Borisovitch Koudriavtsev
Publisher: World Scientific
Total Pages: 373
Release: 1996-09-20
Genre: Science
ISBN: 9814499455

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The book is intended to help under- and postgraduate students and young scientists in the correct application of NMR to the solution of physico-chemical problems concerning the study of equilibria in solution. The first part of the book (Chapters 1-3) is a trivium, but should enable a student to design and conduct simple physico-chemical NMR experiments. The following chapters give illustrative material on the physico-chemical applications of NMR of increasing complexity. These chapters include the problem of determination of equilibrium and rate constants in solution, the study of paramagnetism using NMR, the application of Dynamic NMR techniques and relaxation measurements. A multipurpose nonlinear regression program is supplied (on disc for PC) and is referred to throughout the book.


Annual Reports on NMR Spectroscopy

Annual Reports on NMR Spectroscopy
Author:
Publisher: Elsevier
Total Pages: 301
Release: 2003-06-25
Genre: Science
ISBN: 0080490433

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Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicians to study the structure and dynamics of molecules. In recent years, no other technique has grown to such importance as NMR spectroscopy. It is used in all branches of science where precise structural determination is required and where the nature of interactions and reactions in solution is being studied. Annual Reports on NMR has established itself as a premier means for the specialist and nonspecialist alike to become familiar with new techniques and applications of NMR spectroscopy. Volume 49 continues the tradition with contributions on: novel applications of dynamic NMR in organic chemistry; principles and unconventional aspects of NMR diffusometry; density functional theory and its application to NMR sheilding constants; NMR studies of lac operator lac repressor; and intramolecular interactions of polyethers and polysulphides, investigated by NMR, Ab Initio molecular orbital calculations and the rotational isomeric state scheme. - Includes comprehensive review articles on NMR Spectroscopy - NMR is used in all branches of science - No other technique has grown to such importance as NMR Spectroscopy in recent years