November 25, 2020

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High Resolution NMR Spectroscopy in Solids

High Resolution NMR Spectroscopy in Solids
Author : M. Mehring
Publisher : Springer Science & Business Media
Release Date : 2012-12-06
Category : Science
Total pages :248
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Manipulation and Dilution Tools for Ruling Abundant Species "NMR is dead" was the slogan heard in the late 1960s at least among physicists, until John S. Waugh and his co-workers initiated a series of new NMR experiments, which employed the coherent modulation of interactions by strong radiofrequency fields. A wealth of new phenomena was observed, which are summarized in the introduction for the convenience of the unbiased reader, whereas Section 2 collects the basic spin interactions observed in solids. Line-narrowing effects in dipolar coupled solids by the application of multiple pulse experiments are extensively discussed in Section 3. Numerous extensions of the basic Waugh, Huber, and Haeberlen experiment have been developed by different groups and have been applied to the nuclei IH, 9Be, 19F, 27Al, 31p, 63CU in solids. Application of this technique to a variety of systems is still in progress and should reveal interesting insights into weak spin interactions in solids. It was soon realized that rare spins could be used as monitors for molecular fields in the solid state; however, rare spin observation is difficult because of the small signal-to-noise ratio. Pines, Gibby, and Waugh introduced a new concept of cross-polarization, based on ideas of Hahn and co-workers, which allows the detection ofrare spins with increased sensitivity. The dynamics involved are treated in detail. Other sections merely list results obtained by the techniques described and demonstrate their usefulness in the investigation of dynamical problems in molec ular and solid state physics.

High Resolution NMR Spectroscopy: Understanding Molecules and their Electronic Structures

High Resolution NMR Spectroscopy: Understanding Molecules and their Electronic Structures
Author : Anonim
Publisher : Newnes
Release Date : 2013-06-08
Category : Science
Total pages :456
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The progress in nuclear magnetic resonance (NMR) spectroscopy that took place during the last several decades is observed in both experimental capabilities and theoretical approaches to study the spectral parameters. The scope of NMR spectroscopy for studying a large series of molecular problems has notably broadened. However, at the same time, it requires specialists to fully use its potentialities. This is a notorious problem and it is reflected in the current literature where this spectroscopy is typically only used in a routine way. Also, it is seldom used in several disciplines in which it could be a powerful tool to study many problems. The main aim of this book is to try to help reverse these trends. This book is divided in three parts dealing with 1) high-resolution NMR parameters; 2) methods for understanding high-resolution NMR parameters; and 3) some experimental aspects of high-resolution NMR parameters for studying molecular structures. Each part is divided into chapters written by different specialists who use different methodologies in their work. In turn, each chapter is divided into sections. Some features of the different sections are highlighted: it is expected that part of the readership will be interested only in the basic aspects of some chapters, while other readers will be interested in deepening their understanding of the subject dealt with in them. Shows how NMR parameters are useful for structure assignment as well as to obtain insight on electronic structures Emphasis on conceptual aspects Contributions by specialists who use the discussed methodologies in their everyday work

High-resolution NMR Techniques in Organic Chemistry

High-resolution NMR Techniques in Organic Chemistry
Author : T. Claridge
Publisher : Elsevier
Release Date : 1999
Category : Science
Total pages :382
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From the initial observation of proton magnetic resonance in water and in paraffin, the discipline of nuclear magnetic resonance has seen unparalleled growth as an analytical method. Modern NMR spectroscopy is a highly developed, yet still evolving, subject which finds application in chemistry, biology, medicine, materials science and geology. In this book, emphasis is on the more recently developed methods of solution-state NMR applicable to chemical research, which are chosen for their wide applicability and robustness. These have, in many cases, already become established techniques in NMR laboratories, in both academic and industrial establishments. A considerable amount of information and guidance is given on the implementation and execution of the techniques described in this book.

Structure of High-Resolution NMR Spectra

Structure of High-Resolution NMR Spectra
Author : P.L. Corio
Publisher : Elsevier
Release Date : 2012-12-02
Category : Science
Total pages :560
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Structure of High-Resolution NMR Spectra provides the principles, theories, and mathematical and physical concepts of high-resolution nuclear magnetic resonance spectra. The book presents the elementary theory of magnetic resonance; the quantum mechanical theory of angular momentum; the general theory of steady state spectra; and multiple quantum transitions, double resonance and spin echo experiments. Physicists, chemists, and researchers will find the book a valuable reference text.

High-resolution NMR Techniques in Organic Chemistry

High-resolution NMR Techniques in Organic Chemistry
Author : Timothy D. W. Claridge
Publisher : Newnes
Release Date : 2009
Category : Mathematics
Total pages :383
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"Nuclear Magnetic Resonance (NMR) Spectroscopy remains the foremost analytical technique for the structure elucidation of organic molecules and an indispensable tool for the synthetic, medicinal and natural product chemist. New techniques continue to emerge and the application of NMR methods continues to expand. High-Resolution NMR Techniques in Organic Chemistry is designed for use in academic and industrial NMR facilities, as a text for graduate-level NMR courses, and as an accessible reference for the chemist's or spectroscopist's desk." --Book Jacket.

High Resolution Nuclear Magnetic Resonance Spectroscopy

High Resolution Nuclear Magnetic Resonance Spectroscopy
Author : J. W. Emsley,J Feeney,L H Sutcliffe
Publisher : Elsevier
Release Date : 2013-10-22
Category : Science
Total pages :542
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High Resolution Nuclear Magnetic Resonance Spectroscopy, Volume 2 provides a comprehensive coverage of the theories and methods for analysis of high resolution spectra. The title also presents a discourse on other variables that affect the spectra. The text first details the correlations of 1H resonance spectral parameters with molecular structure, and then proceeds to tackling the 19F nuclear magnetic resonance studies. Next, the selection deals with the NMR spectra of nuclei other than hydrogen fluoride. The text also provides data sets, such as nuclear properties, T-values, and chemical shifts. The book will be of great use to scientists who utilize nuclear magnetic resonance in their work.

Principles of High Resolution NMR in Solids

Principles of High Resolution NMR in Solids
Author : M. Mehring
Publisher : Springer Science & Business Media
Release Date : 2012-12-06
Category : Science
Total pages :344
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The field of Nuclear Magnetic Resonance (NMR) has developed at a fascinating pace during the last decade. It always has been an extremely valuable tool to the organic chemist by supplying molecular "finger print" spectra at the atomic level. Unfortunately the high resolution achievable in liquid solutions could not be obtained in solids and physicists and physical chemists had to live with unresolved lines open to a wealth of curve fitting procedures and a vast amount of speculations. High resolution NMR in solids seemed to be a paradoxon. Broad structure less lines are usually encountered when dealing with NMR in solids. Only with the recent advent of mUltiple pulse, magic angle, cross-polarization, two-dimen sional and multiple-quantum spectroscopy and other techniques during the last decade it became possible to resolve finer details of nuclear spin interactions in solids. I have felt that graduate students, researchers and others beginning to get involved with these techniques needed a book which treats the principles, theo retical foundations and applications of these rather sophisticated experimental techniques. Therefore I wrote a monograph on the subject in 1976. Very soon new ideas led to the developement of "two-dimensional spectroscopy" and "multiple-quantum spectroscopy", topics which were not covered in the first edition of my book. Moreover an exponential growth of literature appeared in this area of research leaving the beginner in an awkward situation of tracing back from a current article to the roots of the experiment.

High Resolution NMR Spectroscopy of Synthetic Polymers in Bulk

High Resolution NMR Spectroscopy of Synthetic Polymers in Bulk
Author : Richard A. Komoroski
Publisher : Vch Pub
Release Date : 1986
Category : Science
Total pages :379
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The Analysis of High Resolution NMR Spectra

The Analysis of High Resolution NMR Spectra
Author : Raymond John Abraham
Publisher : Unknown
Release Date : 1971
Category : Nuclear magnetic resonance spectroscopy
Total pages :324
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Solid-liquid separation is an important industrial process used for recovery of solids from suspensions and/or purification of liquids. Despite its application in many industries, ranging from the treatment of suspensions in the chemical industry to the purification of water supplies, the subject is not adequately covered in most undergraduate courses. Volume 5 of the Handbook provides an up-to-date, balanced and exhaustive account of the available technology in solid-liquid separation. The author emphasises the principles, design, and basic engineering concepts and makes some reference to the basic tests and procedures for scale-up. The intention is to remain as non-commercial as possible, with little reference to manufacturers except when the equipment is unique. The book is intended for practicing engineers, as well as for any newcomers to the field or students. Its exhaustive coverage, the clarity of the descriptions and its organized structure make it an ideal teaching text for undergraduate/postgraduate courses in mineral processing, chemical and process engineering. Technical libraries, equipment manufacturers and users will also find it a very useful book.

High Resolution NMR

High Resolution NMR
Author : Edwin D. Becker
Publisher : Elsevier
Release Date : 2013-10-22
Category : Science
Total pages :324
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High Resolution NMR: Theory and Chemical Applications focuses on the applications of nuclear magnetic resonance (NMR), as well as chemical shifts, lattices, and couplings. The book first offers information on the theory of NMR, including nuclear spin and magnetic moment, spin lattice relaxation, line widths, saturation, quantum mechanical description of NMR, and ringing. The text then ponders on instrumentation and techniques and chemical shifts. Discussions focus on the origin of chemical shifts, reference compounds, empirical correlations of chemical shifts, modulation and phase detection, requirements for high resolution NMR, and superconducting magnets. The text elaborates on electron-coupled spin-spin interactions, as well as origin of spin-spin coupling, signs of coupling constants, theory of spin-spin coupling, correlation of coupling constants with other physical properties, and observed coupling constant. The manuscript also ponders on the use of NMR in structure elucidation, theory and applications of double resonance, and analysis of complex spectra. The publication is a dependable reference for readers interested in high resolution NMR.

High Resolution NMR

High Resolution NMR
Author : Bozzano G Luisa
Publisher : Elsevier
Release Date : 2016-01-22
Category : Science
Total pages :354
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High Resolution NMR: Theory and Chemical Applications, Second Edition covers the significant progress in understanding the NMR phenomena, instrumentation, and applications in chemical and biochemistry. This edition is divided into 14 chapters and begins with the historical developments and theoretical aspects of NMR. Considerable chapters are devoted to the basic principles, chemical shifts, coupling constants, and analysis of complex spectra. Other chapters contain expanded topics on carbon-13, nuclear Overhauser effect, relaxation mechanisms, and the use of superconducting magnets. The remaining chapters examine the concepts of solvent effects, hydrogen bonding, and the use of NMR in quantitative analysis. This book will prove useful to analytical chemists, biochemists, and researchers.

NMR

NMR
Author : Anonim
Publisher : Unknown
Release Date : 1976
Category :
Total pages :129
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Techniques of High Resolution Nuclear Magnetic Resonance Spectroscopy

Techniques of High Resolution Nuclear Magnetic Resonance Spectroscopy
Author : Walter McFarlane,Raymond Frederick Martin White
Publisher : Unknown
Release Date : 1972
Category : Nuclear magnetic resonance spectroscopy
Total pages :137
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Paramagnetic Complexes in High Resolution NMR Spectroscopy

Paramagnetic Complexes in High Resolution NMR Spectroscopy
Author : V. K. Voronov,A. V. Podoplelov
Publisher : Unknown
Release Date : 2015-01-01
Category : Chemistry, Organic
Total pages :190
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The monograph covers theoretical aspects of the method based on the analysis of NMR spectra transformed by electron-nuclear or hyperfine coupling, and provides examples of its practical application for the solution of different tasks related to structure and intramolecular dynamics of multi-electron systems. The fundamentals of NMR theory in paramagnetic systems were formulated by Blombergen, McConnell, Solomon, Berkheyn and other researchers. However, wide application of HFC specifics for the solution of diverse chemical tasks was triggered later, after the development of a method for analysis of NMR spectra transformed by additives of paramagnetic complexes. The book consists of three chapters. Chapter 1 discloses the fundamentals of high resolution NMR spectra transformed by hyperfine coupling. The two other chapters illustrate fruitfulness and prospects of the application of NMR phenomenon in paramagnetic systems for studying molecular structure. Examples of specific spectra, analyzed in the monograph, are selected in such a way that they could help a reader understand a circle of possible problems which are solved using peculiarities of the NMR phenomenon in paramagnetic systems. The same examples also illustrate the techniques which can be employed for obtaining information on the molecular structure of both ligands and complexes using their NMR spectra transformed by hyperfine coupling.

High Resolution Nuclear Magnetic Resonance Spectroscopy

High Resolution Nuclear Magnetic Resonance Spectroscopy
Author : James William Emsley,James Feeney,Leslie Howard Sutcliffe
Publisher : Unknown
Release Date : 1965
Category : Nuclear magnetic resonance
Total pages :1154
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