Freeman (magnetic resonance, U. of Cambridge) introduces new users of nuclear magnetic resonance spectroscopy to the basic steps and suggests some creative ways of combining them.
Author: Ray Freeman
Publisher: Oxford University Press, USA
ISBN: STANFORD:36105022384197
Category: Molecular structure
Page: 418
View: 570
Freeman (magnetic resonance, U. of Cambridge) introduces new users of nuclear magnetic resonance spectroscopy to the basic steps and suggests some creative ways of combining them. He uses a pictorial rather than a formal quantum-mechanical approach, avoids mathematical formalisms whenever possible, and provides many analogies to offer insight into the physical behavior of nuclear spin. Suitable as a supplementary text in graduate and advance undergraduate courses on spectroscopy and physical methods. Annotation copyrighted by Book News, Inc., Portland, OR
Further Reading 0 For more on the quantum mechanics of a single spin-1/2, see C. Cohen-Tannoudji, ... o For more discussion of the rotating frame, and a treatment of selective pulses and shaped pulses, see R. Freeman, Spin Choreography.
Author: Malcolm H. Levitt
Publisher: John Wiley & Sons
ISBN: 9781118681848
Category: Science
Page: 744
View: 109
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
Once Hahn had shown the way , the idea that nuclear spins could be manipulated in quite complicated ways gradually ... We may call this new science spin choreography and the aim of this Article is to show that many of these new ballet ...
Author: A. Abragam
Publisher: Oxford University Press
ISBN: 0198539622
Category: Science
Page: 586
View: 644
Hahn is one of the outstanding physicists of the second half of the twentieth century. From his original discovery of spin echoes and his demonstration of nuclear free induction decay stem the most important methods of modern nuclear magnetic resonance. The wide impact of these methods inphysics, chemistry, biology, and medicine is fully acknowledged. In addition, his fundamental contributions in nuclear quadruple echo phenomena, level crossing techniques, self induced transparency and laser physics have been of paramount importance.This book has been designed as a tribute to Hahn at his seventieth birthday. The articles present a stimulating, challenging and, perhaps, controversial contribution to the scientific literature which will be read advantageously by students and research workers from the fields of nuclear magneticresonance in physics, chemistry, biochemistry, and medical imaging together with electron spin resonance and laser optics.The contributors include the foremost researchers in magnetic resonance, among them A. Abragam, M. Bloom, R.R. Ernst, R. Freeman, M.P. Klein, P. Mansfield, M. Mehring, W.B. Mims, R.E. Norberg, A. Pines, A.G. Redfield, R.E. Richards, C.P. Slichter, and J.S. Waugh.
It follows that the simulation of spin isochromat manipulations in the gauge of a rotating coordinate frame ... in Lie ( G ) * for the spin choreography of high- resolution nuclear MRS studies and the generation of magnetic spin echo ...
Author: I. V. Volovich
Publisher: American Mathematical Soc.
ISBN: 0821804642
Category: Mathematical analysis
Page: 420
View: 545
This collection, dedicated to the 70th anniversary of the birth of VasiliiSergeevich Vladimirov, consists of original papers on various branches of analysis and mathematical physics. It presents work relating to the following topics:--the theory of generalized functions--complex and $p$-adic analysis--mathematical questions of quantum field theory and statistical mechanics--computational mathematics and differential equations.
The division of spin-dependent interactions into secular and nonsecular parts is of particular interest in solid phase ... frequencies of different homonuclear parts of a composite spin system, is sometimes called “spin choreography”.
Author: Sławomir Szymański
Publisher: Springer
ISBN: 9783319907819
Category: Science
Page: 402
View: 259
The book provides a detailed account of how condensed-phase molecular dynamics are reflected in the line shapes of NMR spectra. The theories establishing connections between random, time-dependent molecular processes and lineshape effects are exposed in depth. Special emphasis is placed on the theoretical aspects, involving in particular intermolecular processes in solution, and molecular symmetry issues. The Liouville super-operator formalism is briefly introduced and used wherever it is beneficial for the transparency of presentation. The proposed formal descriptions of the discussed problems are sufficiently detailed to be implemented on a computer. Practical applications of the theory in solid- and liquid-phase studies are illustrated with appropriate experimental examples, exposing the potential of the lineshape method in elucidating molecular dynamics NMR-observable molecular phenomena where quantization of the spatial nuclear degrees of freedom is crucial are addressed in the last part of the book. As an introduction to this exciting research field, selected aspects of the quantum mechanics of isolated systems undergoing rotational tunnelling are reviewed, together with some basic information about quantum systems interacting with their condensed environment. The quantum theory of rate processes evidenced in the NMR lineshapes of molecular rotors is presented, and illustrated with appropriate experimental examples from both solid- and liquid-phase spectra. In this context, the everlasting problem of the quantum-to-classical transition is discussed at a quantitative level. The book will be suitable for graduate students and new and practising researchers using NMR techniques.
... which inverts the phase of the magnetisation vectors in the transverse plane: φ → −φ. if the spins are then allowed ... Spin Choreography,68 which provides an excellent exposition of some of the sophisticated ways of manipulating ...
Author: Yang Xia
Publisher: Royal Society of Chemistry
ISBN: 9781782621331
Category: Science
Page: 760
View: 443
This unique book describes the latest information in the fundamental understanding of the biophysics and biochemistry of articular cartilage using the state-of-the-art practices in NMR and MRI. This is the first book of its kind, written by physicists and chemists on this important tissue, whose degradation contributes to osteoarthritis and related joint diseases. Connecting the fundamental science with the clinical imaging applications, the experts Editors provide an authoritative addition to the literature. Ideal for practising physical scientists and radiologists with an interest in the fundamental science as well as instrument manufacturers and clinical researchers working with articular cartilage.
Frequency dependence of electron spin-lattice relaxation for semiquinones in alcohol solutions. J. Magn. Reson. 247: 81–87. ... Spin Choreography: Basic Steps in High Resolution NMR. Sausalito, CA, University Science Books.
Author: Nelu Grinberg
Publisher: CRC Press
ISBN: 9781351644310
Category: Medical
Page: 1614
View: 903
This handbook is a guide for workers in analytical chemistry who need a starting place for information about a specific instrumental technique. It gives a basic introduction to the techniques and provides leading references on the theory and methodology for an instrumental technique. This edition thoroughly expands and updates the chapters to include concepts, applications, and key references from recent literature. It also contains a new chapter on process analytical technology.
NMR Spectroscopy Explained : Simplified Theory, Applications and Examples for Organic Chemistry and Structural Biology provides a fresh, practical guide to NMR for both students and practitioners, in a clearly written and non-mathematical format. It gives the reader an intermediate level theoretical basis for understanding laboratory applications, developing concepts gradually within the context of examples and useful experiments. Introduces students to modern NMR as applied to analysis of organic compounds. Presents material in a clear, conversational style that is appealing to students. Contains comprehensive coverage of how NMR experiments actually work. Combines basic ideas with practical implementation of the spectrometer. Provides an intermediate level theoretical basis for understanding laboratory experiments. Develops concepts gradually within the context of examples and useful experiments. Introduces the product operator formalism after introducing the simpler (but limited) vector model.
Following page/body slice selection and nuclear spin choreography to be able to compute the appropriate image, the machine functions during repeated spin echo as a resonant cavity, where the pattern slice /hologram, ie memory image ...
Author: Sameer Singh
Publisher: Springer Science & Business Media
ISBN: 9781447108337
Category: Computers
Page: 470
View: 475
International Conference on Advances in Pattern Recognition (ICAPR 98) at Plymouth represents an important meeting for advanced research in pattern recognition. There is considerable interest in the areas of image processing, medical imaging, speech recognition, document analysis and character recognition, fuzzy data analysis and neural networks. ICAPR 98 is aimed at providing an international platform for invited research in this multi-disciplinary area. It is expected that the conference will grow in future years to include more research contributions that detail state-of the-art research in pattern recognition. ICAPR 98 attracted contributions from different countries of the highest quality. I should like to thank the programme and organising committee for doing an excellent job in organising this conference. The peer reviewed nature of the conference ensured high quality publications in these proceedings. My personal thanks to Mrs. Barbara Davies who served as conference secretary and worked tirelessly in organising the conference. I thank the organising chair for the local arrangements and our should also key-note, plenary and tutorial speakers for their valuable contributions to the conference. I also thank Springer-Verlag for publishing these proceedings that will be a valuable source of research reference for the readers. Finally, I thank all participants who made this conference successful.
This book describes the use of NMR spectroscopy for dealing with problems of small organic molecule structural elucidation. It features a significant amount of vital chemical shift and coupling information but more importantly, it presents sound principles for the selection of the techniques relevant to the solving of particular types of problem, whilst stressing the importance of extracting the maximum available information from the simple 1-D proton experiment and of using this to plan subsequent experiments. Proton NMR is covered in detail, with a description of the fundamentals of the technique, the instrumentation and the data that it provides before going on to discuss optimal solvent selection and sample preparation. This is followed by a detailed study of each of the important classes of protons, breaking the spectrum up into regions (exchangeables, aromatics, heterocyclics, alkenes etc.). This is followed by consideration of the phenomena that we know can leave chemists struggling; chiral centres, restricted rotation, anisotropy, accidental equivalence, non-first-order spectra etc. Having explained the potential pitfalls that await the unwary, the book then goes on to devote chapters to the chemical techniques and the most useful instrumental ones that can be employed to combat them. A discussion is then presented on carbon-13 NMR, detailing its pros and cons and showing how it can be used in conjunction with proton NMR via the pivotal 2-D techniques (HSQC and HMBC) to yield vital structural information. Some of the more specialist techniques available are then discussed, i.e. flow NMR, solvent suppression, Magic Angle Spinning, etc. Other important nuclei are then discussed and useful data supplied. This is followed by a discussion of the neglected use of NMR as a tool for quantification and new techniques for this explained. The book then considers the safety aspects of NMR spectroscopy, reviewing NMR software for spectral prediction and data handling and concludes with a set of worked Q&As.