Download or read book Structure of High Resolution NMR Spectra written by P.L. Corio and published by Elsevier. This book was released on 2012-12-02 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book High resolution NMR Techniques in Organic Chemistry written by T. Claridge and published by Elsevier. This book was released on 1999-12-24 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Principles of High Resolution NMR in Solids written by M. Mehring and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Structure of high resolution NMR spectra written by Paul Lewis Corio and published by . This book was released on 1967 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Resolution NMR Spectroscopy Understanding Molecules and their Electronic Structures written by and published by Newnes. This book was released on 2013-06-08 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book High Resolution NMR written by Edwin D. Becker and published by Elsevier. This book was released on 2013-10-22 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Methods for Structure Elucidation by High Resolution NMR written by G. Batta and published by Elsevier. This book was released on 1997-12-04 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Magnetic Resonance Spectroscopy (NMR) is now widely regarded as having evolved into a subscience. The field has become immensely diverse, ranging from medical use through solid state NMR to liquid state applications, with countless books and scientific journals devoted to these topics. Theoretical as well as experimental advance continues to be rapid, and has in fact accelerated by many novel innovations. This multi-authored book focuses on the latest developments in the rapidly evolving field of high resolution NMR, specifically with a view to applications on the structure elucidation of organic molecules of moderate molecular weight. Conceptually it differs from basic educational texts, hard-core scientific papers and regular review articles in that each chapter may be regarded as the authors' personal account of their special insights and results that crystallised after several years of research into a given topic. The book revolves around several themes and offers a handful of scientific "gems" of various colors, reflecting the great diversity of NMR. It contains 16 loosely connected chapters written by some of today's most accomplished NMR scientists in the world. Each chapter is a unique synthesis of the authors' previous research results in the given field, and thus projects special insights. Much emphasis has been given to the latest developments in NMR, in particular to selective pulses and pulsed field gradients. As a part of the series "Analytical Spectroscopy Library", with subsequent editions coming along this book should provide a platform for future research accounts of similar flavor. The material is presented in a mostly non-mathematical fashion, and is intended mainly for chemists, application NMR scientists and students with already some background in NMR. Some of the chapters slightly overlap in the discussed topics, which is particularly exciting in terms of gaining insight into the same area from different angles.
Download or read book High Resolution NMR Techniques in Organic Chemistry written by Timothy D.W. Claridge and published by Newnes. This book was released on 2009 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.
Download or read book Biological NMR Spectroscopy written by John L. Markley and published by Oxford University Press. This book was released on 1997-01-30 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a critical assessment of progress on the use of nuclear magnetic resonance spectroscopy to determine the structure of proteins, including brief reviews of the history of the field along with coverage of current clinical and in vivo applications. The book, in honor of Oleg Jardetsky, one of the pioneers of the field, is edited by two of the most highly respected investigators using NMR, and features contributions by most of the leading workers in the field. It will be valued as a landmark publication that presents the state-of-the-art perspectives regarding one of today's most important technologies.
Download or read book High Resolution NMR Techniques in Organic Chemistry written by T. Claridge and published by Elsevier. This book was released on 1999-12-24 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Structure Determination by High resolution NMR Spectroscopy written by Geerten W. Vuister and published by . This book was released on 1996 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Analysis of High Resolution NMR Spectra written by Raymond John Abraham and published by . This book was released on 1971 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Ultra High Resolution NMR Methods and Its Applications written by Upendra Singh and published by . This book was released on 2023-01-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-high resolution nuclear magnetic resonance (NMR) methods refer to advanced techniques used to obtain detailed structural information about molecules. These methods use high-field magnets and specialized pulse sequences to achieve very high resolution in the NMR spectrum, allowing for the detection of very small chemical shifts and coupling constants. One of the main applications of ultra-high resolution NMR methods is in the study of biological macromolecules, such as proteins and nucleic acids. These methods can be used to determine the three-dimensional structure of these molecules, which is important for understanding their function and for drug design. Ultra-high resolution NMR methods can also be used for the study of small molecules. These methods can be used to determine the conformation of a molecule in solution, which is important for understanding the properties of a molecule and for designing new materials. In addition, ultra-high resolution NMR can be used for quantitative analysis of complex mixture. The high resolution of the spectrum allows for the detection of very small amounts of impurities or contaminants, and can also be used to determine the concentration of a component in a mixture. Overall, ultra-high resolution NMR methods are powerful tools that can provide detailed structural information about molecules and can be used in a wide range of applications, including biology, chemistry, and materials science. Nuclear magnetic resonance (NMR) spectroscopy is a potent analytical tool to comprehend physical and chemical nature (mobility, dynamics and kinetics) of small to medium size molecules for an extensive range of samples under variety of conditions such as temperature, concentration, and pH. A wealth of information related to molecular properties and interactions can be furnished by using NMR which could consequently provide utility in molecular structural identification. However, low sensitivity along with low resolution is a concern in application of NMR. Within the past few decades, NMR sensitivity has improved significantly through advancement in instrumentation as well as methodological developments. Recent upgrade in NMR instrumentation such as cryogenically cooled probes[1] has led to increase sensitivity and three to four-times better signal /noise ratio in comparison to room temperature probes leading to faster acquisition times and improved sensitivity. Resolution of spectrum is additionally improved in a high magnetic field which disperses the chemical shifts over the broad frequency range (in Hz). Nevertheless, signal overlaps continue being a limiting factor for characterizing complicated spectra. Therefore, a steady development of new pulse sequences and enhancements of the existing ones are of vital importance in improving the overall performance of NMR spectroscopy.
Download or read book High Resolution NMR written by Bozzano G Luisa and published by Elsevier. This book was released on 2013-10-22 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Introduction to NMR Spectroscopy written by Raymond John Abraham and published by . This book was released on 1988-11-24 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to NMR Spectroscopy R. J. Abraham, School of Chemistry, University of Liverpool J. Fisher, Biological NMR Centre, University of Leicester P. Loftus, Stuart Pharmaceuticals, Delaware, USA This book is a new, extended edition of Proton and Carbon 13 NMR by R. J. Abraham and P. Loftus. The initial chapters cover the fundamentals of NMR spectroscopy commencing with an explanation of how the nuclear magnetic response occurs, followed by a detailed discussion of chemical shifts and coupling constants, parameters not discussed to any length in other textbooks aimed at a similar level of interest. Emphasis is given to the vectorial description of multipulse experiments, as this is probably the easiest way to grasp how different information may be gained simply by changing a pulse sequence. An understanding of multipulse NMR is a prerequisite for understanding 2D NMR. The section on 2D NMR begins with a discussion of the resolved experiment. This is a logical initial choice as the spectra produced by this experiment may be readily compared with 1D spectra. Following on from this both heteronuclear and homonuclear correlation spectroscopy are described and examples given. The final section of the book should be considered as an applications section. It is aimed at showing the reader that NMR is not just of use to the synthetic organic chemist but is also of use to biochemists for investigating the solution state structure and function of proteins, enzymes, etc. The application of high resolution NMR to the solid state is also discussed, thereby indicating the developments which have taken place as far as spectrometer hardware is concerned.
Download or read book High Resolution NMR Spectroscopy written by Rubén H. Contreras and published by Elsevier Inc. Chapters. This book was released on 2013-06-08 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this introductory chapter are described briefly the aims and scopes of this multiauthor book. One of the main ideas behind them is helping its readership to understand some approaches for extracting information on subtle chemical interactions, defining trends of such parameters from either measured or calculated high-resolution NMR parameters (indirect nuclear spin–spin coupling constants and nuclear magnetic shielding constant) without needing to acquire solid backgrounds on quantum chemistry. However, in all cases, the discussed ideas are based on solid grounds, and adequate references are quoted for readers interested in a better understanding of the basic concepts lying behind such approaches. It is highlighted that such discussions are restricted only to a few methods in order to both avoid overlapping this book with descriptions found in the current literature and to avoid lengthening this book beyond reasonable limits. It was also considered pertinent to include chapters dealing with concepts whose importance are increasing rapidly in modern NMR spectroscopy like for instance, relativistic effects on NMR parameters in compounds containing heavy atoms, and NMR spectroscopy in paramagnetic species, pNMR. Also, it was considered opportune including in this book excellent examples showing how very good excellent sets of experimental values can provide interesting insight in some chemical interactions.
Download or read book High Resolution NMR Spectroscopy written by Juha Vaara and published by Elsevier Inc. Chapters. This book was released on 2013-06-08 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory and quantum-chemical calculations of the spectral parameters of nuclear magnetic resonance (NMR) are well established in the case of diamagnetic, closed-shell molecules. In contrast, NMR calculations of paramagnetic, open-shell molecules (pNMR) are scarce, limited by both assumptions within the underlying theoretical background as well as the availability of computational implementations. We discuss the systematic development of pNMR theory that recently culminated in a novel, general and systematic electronic structure approach for the shielding tensor and the associated chemical shift for paramagnetic, open-shell atoms, molecules, and nonmetallic solids. The approach has now been extended for the first time to a higher than doublet spin state as well as arbitrary spatial symmetry. The approach is formulated without reference to spin susceptibility, in contrast to the contemporary experimental procedure and approximate quantum-chemical treatment of axial zero-field splitting. As a result of the systematic procedure, all the temperature-dependent hyperfine shielding terms are generalized and, for example, the leading-order nonrelativistic dipolar term now provides an isotropic chemical shift contribution for species with triplet and higher spin multiplicity. Recent first-principles quantum-chemical calculations of pNMR chemical shifts are reviewed both using the novel theory as well as earlier approaches.
