Phosphorus-31 NMR Spectroscopy PDF Download
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Author: Olaf Kühl
Publisher: Springer Science & Business Media
ISBN: 3540791183
Category : Science
Languages : en
Pages : 138
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Book Description
Nuclear Magnetic Resonance is a powerful tool, especially for the identification of 1 13 hitherto unknown organic compounds. H- and C-NMR spectroscopy is known and applied by virtually every synthetically working Organic Chemist. Con- quently, the factors governing the differences in chemical shift values, based on chemical environment, bonding, temperature, solvent, pH, etc. , are well understood, and specialty methods developed for almost every conceivable structural challenge. Proton and carbon NMR spectroscopy is part of most bachelors degree courses, with advanced methods integrated into masters degree and other graduate courses. In view of this universal knowledge about proton and carbon NMR spectr- copy within the chemical community, it is remarkable that heteronuclear NMR is still looked upon as something of a curiosity. Admittedly, most organic compounds contain only nitrogen, oxygen, and sulfur atoms, as well as the obligatory hydrogen and carbon atoms, elements that have an unfavourable isotope distribution when it comes to NMR spectroscopy. Each of these three elements has a dominant isotope: 14 16 32 16 32 N (99. 63% natural abundance), O (99. 76%), and S (95. 02%), with O, S, and 34 14 S (4. 21%) NMR silent. N has a nuclear moment I = 1 and a sizeable quadrupolar moment that makes the NMR signals usually very broad and dif cult to analyse.
Author: Olaf Kühl
Publisher: Springer Science & Business Media
ISBN: 3540791183
Category : Science
Languages : en
Pages : 138
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Book Description
Nuclear Magnetic Resonance is a powerful tool, especially for the identification of 1 13 hitherto unknown organic compounds. H- and C-NMR spectroscopy is known and applied by virtually every synthetically working Organic Chemist. Con- quently, the factors governing the differences in chemical shift values, based on chemical environment, bonding, temperature, solvent, pH, etc. , are well understood, and specialty methods developed for almost every conceivable structural challenge. Proton and carbon NMR spectroscopy is part of most bachelors degree courses, with advanced methods integrated into masters degree and other graduate courses. In view of this universal knowledge about proton and carbon NMR spectr- copy within the chemical community, it is remarkable that heteronuclear NMR is still looked upon as something of a curiosity. Admittedly, most organic compounds contain only nitrogen, oxygen, and sulfur atoms, as well as the obligatory hydrogen and carbon atoms, elements that have an unfavourable isotope distribution when it comes to NMR spectroscopy. Each of these three elements has a dominant isotope: 14 16 32 16 32 N (99. 63% natural abundance), O (99. 76%), and S (95. 02%), with O, S, and 34 14 S (4. 21%) NMR silent. N has a nuclear moment I = 1 and a sizeable quadrupolar moment that makes the NMR signals usually very broad and dif cult to analyse.
Author: William Kemp
Publisher: Free Press
ISBN: 9780029494011
Category : Nuclear magnetic resonance spectroscopy
Languages : en
Pages : 240
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Book Description
Author: David G. Gorenstein
Publisher: Academic Press
ISBN: 0080918417
Category : Science
Languages : en
Pages : 619
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Book Description
Phosphorous-31 NMR: Principles and Applications focuses on the evolution of phosphorus-31 nuclear magnetic resonance (NMR) as a widely applied spectroscopic probe of the structure and dynamics of phosphorus-containing compounds. The selection first offers information on the principles and empirical observations of phosphorus-31 chemical shifts and the principles and applications of phosphorus-31 spin-spin coupling constants. Discussions focus on introduction and basic principles, directly bonded phosphorus coupling constants, and two-bond and three-bond coupling constants. The text then ponders on phosphorus-31 NMR of enzyme complexes and paramagnetic probes of enzyme complexes with phosphorus-containing compounds. The manuscript elaborates on the use of chiral thiophosphates and the stereochemistry of enzymatic phosphoryl transfer and DNA and RNA conformations. Topics include helix-coil transitions, sequence dependence of double-stranded DNA conformations, dynamic behavior of RNA and DNA, biological and genetic significance, and stereochemical problems studied with chiral thiophosphates. The conformation and dynamics of nucleic acids and phosphoproteins, relaxation behavior of nucleic acids, and theory and applications of solid-state phosphorus-31 NMR to nucleic acids are also discussed. The selection is a valuable reference for readers interested in the principles and applications of phosphorus-31 nuclear magnetic resonance.
Author: C. Burt
Publisher: CRC Press
ISBN: 1351092448
Category : Medical
Languages : en
Pages : 337
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Book Description
NMR is a technique that can spoil you. It is true that it is not as sensitive as some of the spectroscopic methods, but the quality of the information and the incredible ease of sample preparation make it one of the tools that have opened new vistas in biological research. This volume is intended to show how those vistas can range from the molecule to the microbe to man himself. Further, it is what prompts the rather broad title.
Author: Norbert W. Lutz
Publisher: Cambridge University Press
ISBN: 0521765900
Category : Medical
Languages : en
Pages : 641
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Book Description
Metabolomics, the global characterisation of the small molecule complement involved in metabolism, has evolved into a powerful suite of approaches for understanding the global physiological and pathological processes occurring in biological organisms. The diversity of metabolites, the wide range of metabolic pathways and their divergent biological contexts require a range of methodological strategies and techniques. Methodologies for Metabolomics provides a comprehensive description of the newest methodological approaches in metabolomic research. The most important technologies used to identify and quantify metabolites, including nuclear magnetic resonance and mass spectrometry, are highlighted. The integration of these techniques with classical biological methods is also addressed. Furthermore, the book presents statistical and chemometric methods for evaluation of the resultant data. The broad spectrum of topics includes a vast variety of organisms, samples and diseases, ranging from in vivo metabolomics in humans and animals to in vitro analysis of tissue samples, cultured cells and biofluids.
Author: Stefan Berger
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 1114
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Book Description
NMR Spectroscopy of the Non-Metallic Elements Stefan Berger Philipps-Universität, Marburg, Germany Siegmar Braun Technische Hochschule Darmstadt, Germany Hans-Otto Kalinowski Justus-Liebig-Universität, Gießen, Germany In recent years, the technique of Nuclear Magnetic Resonance (NMR) Spectroscopy has rapidly gained in importance outside its traditional areas of proton NMR and carbon-13 NMR. In particular, it has become much more applicable to compounds containing elements such as phosphorus, nitrogen and fluorine. NMR Spectroscopy of the Non-Metallic Elements gathers together a wealth of NMR data for the most important non-metallic elements, namely nitrogen, oxygen, fluorine, phosphorus, sulphur and xenon. For each element, the data for the simpler compounds and their derivatives (both organic and inorganic) are gathered together in as complete a form as possible, and the regularities that emerge are discussed in detail in relation to structural variations. This allows the reader to interpret the structure of more complex structures. The chapters containing the NMR data for the elements are preceded by a practical introduction to the basic theory and experimental techniques of the NMR parameters, especially the chemical shift and indirect spin-spin coupling. This material will help the reader both in finding practical solutions to problems of structure determination, and in critically evaluating the spectra obtained. NMR Spectroscopy of the Non-Metallic Elements is an invaluable reference source for all laboratories where NMR is used. It will also be widely used by organic and inorganic chemists, especially those working on nitrogen, fluorine and phosphorus compounds.
Author: Ernö Pretsch
Publisher: Springer Science & Business Media
ISBN: 3662224550
Category : Science
Languages : en
Pages : 325
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Book Description
Although numerical data are, in principle, universal, the compilations presented in this book are extensively annotated and interleaved with text. This translation of the second German edition has been prepared to facilitate the use of this work, with all its valuable detail, by the large community of English-speaking scientists. Translation has also provided an opportunity to correct and revise the text, and to update the nomenclature. Fortunately, spectroscopic data and their relationship with structure do not change much with time so one can predict that this book will, for a long period of time, continue to be very useful to organic chemists involved in the identification of organic compounds or the elucidation of their structure. Klaus Biemann Cambridge, MA, April 1983 Preface to the First German Edition Making use of the information provided by various spectroscopic tech niques has become a matter of routine for the analytically oriented organic chemist. Those who have graduated recently received extensive training in these techniques as part of the curriculum while their older colleagues learned to use these methods by necessity. One can, therefore, assume that chemists are well versed in the proper choice of the methods suitable for the solution of a particular problem and to translate the experimental data into structural information.
Author: Benjamin L. Turner
Publisher: Cabi
ISBN: 9780851998220
Category : Science
Languages : en
Pages : 399
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Book Description
Phosphorus is essential for life, yet is often the element most limiting for biological productivity. Although most organisms take up phosphorus in an inorganic form, organic forms frequently dominate in soils and aquatic systems. Up to this point, the role of organic phosphorus and mechanisms for its dynamics have been poorly understood. However, recent advances in research have shed new light on the subject and this book brings together these advances. It covers the transformation and characterization of organic phosphorus in both terrestrial and aquatic systems. It will attract a broad range of scientists from several disciplines.
Author: Apostolos Spyros
Publisher: Royal Society of Chemistry
ISBN: 1782625666
Category : Technology & Engineering
Languages : en
Pages : 311
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Book Description
During the last two decades, the use of NMR spectroscopy for the characterization and analysis of food materials has flourished, and this trend continues to increase today. Currently, there exists no book that fulfils specifically the needs of food scientists that are interested in adding or expanding the use of NMR spectroscopy in their arsenal of food analysis techniques. Current books and monographs are rather addressed to experienced researchers in food analysis providing new information in the field. This book, written by acknowledged experts in the field, fills the gap by offering a day to day NMR guide for the food scientist, affording not only the basic theoretical aspects of NMR spectroscopy, but also practical information on sample preparation, experimental conditions and data analysis. Current developments in the field covered in this book are the availability of solid state NMR experiments such as CP/MAS and more importantly HR-MAS NMR for the analysis of semisolid foods, and the increasing use of chemometrics to analyze NMR data in food metabonomics. Moreover, this book contains an up to date discussion of MRI in food analysis including topics such as food processing and natural changes in food such as ripening. The book is a compact and complete source of information for food scientists who wish to apply methodologies based on NMR spectroscopy in food analysis. It contains information so far scattered in the primary literature, in NMR treatises and food analysis books, in a concise format that makes it appealing to food scientists who have no or minimal experience in magnetic resonance techniques. The inclusion of practical information about NMR instrumentation, experiment setup, acquisition and spectral analysis for the study of different food categories make this book a hands-on manual for food scientists wishing to implement novel NMR spectroscopy-based analytical techniques in their field.
Author: The Nuclear Magnetic Resonance Society of Japan
Publisher: Springer
ISBN: 9811059667
Category : Science
Languages : en
Pages : 634
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Book Description
This book describes the advanced developments in methodology and applications of NMR spectroscopy to life science and materials science. Experts who are leaders in the development of new methods and applications of life and material sciences have contributed an exciting range of topics that cover recent advances in structural determination of biological and material molecules, dynamic aspects of biological and material molecules, and development of novel NMR techniques, including resolution and sensitivity enhancement. First, this book particularly emphasizes the experimental details for new researchers to use NMR spectroscopy and pick up the potentials of NMR spectroscopy. Second, the book is designed for those who are involved in either developing the technique or expanding the NMR application fields by applying them to specific samples. Third, the Nuclear Magnetic Resonance Society of Japan has organized this book not only for NMR members of Japan but also for readers worldwide who are interested in using NMR spectroscopy extensively.
