Magnetic Resonance In Studying Natural And Synthetic Materials
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Magnetic Resonance In Studying Natural And Synthetic Materials
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Author : Victor V. Rodin
language : en
Publisher: Bentham Science Publishers
Release Date : 2018-11-02
Magnetic Resonance In Studying Natural And Synthetic Materials written by Victor V. Rodin and has been published by Bentham Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-02 with Science categories.
This book describes nuclear magnetic resonance (NMR) methods which are used to study translational dynamics of molecules in different complex systems including systems made of synthetic and natural polymers, tissues and the porous heterogeneous systems of different types, such as cement and wood. The results of proton spin-lattice and spin-spin relaxation, cross-relaxation, pulse field gradient (PFG) NMR in studying diffusion properties and dynamics of molecules in polymer systems of different complexity are reported. In addition to these methods, reports on the use of the double-quantum-filtered (DQF) NMR technique in a study of slow molecular dynamics and properties of systems with anisotropic properties, such as water in hardening cement pastes, are presented. The book also covers applications of one and two dimensional NMR techniques. This book is a useful reference for readers learning different NMR techniques and their applications in civil engineering and biochemistry.
Nmr Methods For Characterization Of Synthetic And Natural Polymers
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Author : Rongchun Zhang
language : en
Publisher: Royal Society of Chemistry
Release Date : 2019-07-29
Nmr Methods For Characterization Of Synthetic And Natural Polymers written by Rongchun Zhang and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-29 with Science categories.
Since the introduction of FT-NMR spectroscopy around five decades ago, NMR has achieved significant advances in hardware and methodologies, accompanied with the enhancement of spectral resolution and signal sensitivity. Rapid developments in the polymers field mean that accurate and quantitative characterization of polymer structures and dynamics is the keystone for precisely regulating and controlling the physical and chemical properties of the polymer. This book specifically focuses on NMR investigation of complex polymers for the polymer community as well as NMR spectroscopists, and will push the development of both fields. It covers the latest advances, for example high field DNP and ultrafast MAS methodologies, and show how these novel NMR methods characterize various synthetic and natural polymers.
Nuclear Magnetic Resonance
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Author : Vasudevan Ramesh
language : en
Publisher: Royal Society of Chemistry
Release Date : 2016-04-20
Nuclear Magnetic Resonance written by Vasudevan Ramesh and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-20 with Science categories.
Application of nuclear magnetic resonance span a wide range of scientific disciplines and for the first time this volume will focus on a rapidly advancing and important theme – NMR applications in industry. Providing a comprehensive yet critical review of the current literature from various industrial sectors including materials, food science, paints and coatings, polymer science, nuclear chemistry, drug discovery and process control, this volume will be an invaluable source of current methods and applications. Essential reading for those wanting to become rapidly acquainted with NMR and for the seasoned practitioner keeping up to date with the literature.
Paramagnetic Interactions In Nuclear Magnetic Resonance Spectroscopy Of Geologic Materials
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Author : Aaron Craig Palke
language : en
Publisher:
Release Date : 2014
Paramagnetic Interactions In Nuclear Magnetic Resonance Spectroscopy Of Geologic Materials written by Aaron Craig Palke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
This thesis documents the findings and results of our work toward the application of solid-state Nuclear Magnetic Resonance (NMR) spectroscopy to geological materials containing paramagnetic species. Commonly encountered and geologically important paramagnetic species include ions of most of the transition metals and the rare earth elements that have unpaired electrons and will be magnetized in the presence of an external magnetic field. Interactions between the magnetic moments of the paramagnetic ion and the NMR nucleus have important implications for the NMR experiment. Early studies, especially those conducted in the first decade after the wide acceptance of Magic-Angle Spinning NMR (MAS-NMR), pointed out that even modest concentrations of a paramagnetic ion in natural minerals, such as a few % Fe in a feldspar, could cause signal loss and low signal to noise, peak broadening, and "smearing" of the intensity from the isotropic peak to the spinning sidebands with resultant loss of information about chemical shift anisotropy. This early work prompted most solid-state NMR spectroscopists studying geological materials to work almost solely on synthetic non-paramagnetic materials. However, in this work, the argument is advanced that in many cases, valuable structural information can be obtained for paramagnetic geological materials, especially information concerning short-range ordering in solid solutions that cannot be determined using more traditional long-range diffraction techniques. The first two studies presented herein document the presence of distinct paramagnetically shifted NMR resonances in the 27Al and 29Si NMR spectra of two Dora Maira pyrope garnets and in the 31P NMR spectra of a suite of REE3+-bearing synthetic monazite (LaPO4) and xenotime (YPO4). By comparing the number of these peaks and their positions and intensities to the known crystal structures of these materials, peak assignments can be made to specific geometric configurations of the NMR-active atom and the paramagnetic species. Higher quality data for REE3+-beearing synthetic monazite and xenotime are presented later using homogeneous flux-grown material. Peaks related to 31P having more than one neighboring paramagnetic REE3+ are observed and their relative intensities provide evidence of random distributions of cation species in these solid solutions. Additionally, a study is presented on Fe- and Al-bearing MgSiO3 perovskite, an important lower mantle phase. The magnitude of 27Al and 29Si NMR signal loss compared to the concentration of Fe in these materials provides strong evidence of short-range ordering of charge-balancing Fe3+ and Al3+.
Nmr Studies Of Translational Motion
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Author : William S. Price
language : en
Publisher: Cambridge University Press
Release Date : 2009-07-30
Nmr Studies Of Translational Motion written by William S. Price and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-30 with Medical categories.
Overview of NMR theory and applications in fluid systems, fully referenced for research use.
Nuclear Magnetic Resonance Studies In Non Food And Non Feed Agricultural Products
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Author : Robert D. Warmbrodt
language : en
Publisher:
Release Date : 1991
Nuclear Magnetic Resonance Studies In Non Food And Non Feed Agricultural Products written by Robert D. Warmbrodt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Agriculture categories.
Nmr Methods For Characterization Of Synthetic And Natural Polymers
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Author : Rongchun Zhang
language : en
Publisher: Royal Society of Chemistry
Release Date : 2019-08-02
Nmr Methods For Characterization Of Synthetic And Natural Polymers written by Rongchun Zhang and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-02 with Science categories.
Since the introduction of FT-NMR spectroscopy around five decades ago, NMR has achieved significant advances in hardware and methodologies, accompanied with the enhancement of spectral resolution and signal sensitivity. Rapid developments in the polymers field mean that accurate and quantitative characterization of polymer structures and dynamics is the keystone for precisely regulating and controlling the physical and chemical properties of the polymer. This book specifically focuses on NMR investigation of complex polymers for the polymer community as well as NMR spectroscopists, and will push the development of both fields. It covers the latest advances, for example high field DNP and ultrafast MAS methodologies, and show how these novel NMR methods characterize various synthetic and natural polymers.
Encyclopedia Of Physical Organic Chemistry 6 Volume Set
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Author : Zerong Wang
language : en
Publisher: John Wiley & Sons
Release Date : 2017-04-17
Encyclopedia Of Physical Organic Chemistry 6 Volume Set written by Zerong Wang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-17 with Science categories.
Winner of 2018 PROSE Award for MULTIVOLUME REFERENCE/SCIENCE This encyclopedia offers a comprehensive and easy reference to physical organic chemistry (POC) methodology and techniques. It puts POC, a classical and fundamental discipline of chemistry, into the context of modern and dynamic fields like biochemical processes, materials science, and molecular electronics. Covers basic terms and theories into organic reactions and mechanisms, molecular designs and syntheses, tools and experimental techniques, and applications and future directions Includes coverage of green chemistry and polymerization reactions Reviews different strategies for molecular design and synthesis of functional molecules Discusses computational methods, software packages, and more than 34 kinds of spectroscopies and techniques for studying structures and mechanisms Explores applications in areas from biology to materials science The Encyclopedia of Physical Organic Chemistry has won the 2018 PROSE Award for MULTIVOLUME REFERENCE/SCIENCE. The PROSE Awards recognize the best books, journals and digital content produced by professional and scholarly publishers. Submissions are reviewed by a panel of 18 judges that includes editors, academics, publishers and research librarians who evaluate each work for its contribution to professional and scholarly publishing. You can find out more at: proseawards.com Also available as an online edition for your library, for more details visit Wiley Online Library
Analytical Methods Of Food Authentication
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Author : Philip R. Ashurst
language : en
Publisher: Springer Science & Business Media
Release Date : 1998
Analytical Methods Of Food Authentication written by Philip R. Ashurst and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Technology & Engineering categories.
Food Authentication is an issue that has become increasingly important in recent years, due to the drive for more accurate and truthful labeling. This title provides a guide to the techniques available to establish food authenticity, together with their associated strengths and limitations. It is aimed at food scientists and technologists involved in the issues of adulteration or fortification of food and beverages.
Modern Nmr Techniques For Synthetic Chemistry
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Author : Julie Fisher
language : en
Publisher: CRC Press
Release Date : 2014-10-13
Modern Nmr Techniques For Synthetic Chemistry written by Julie Fisher and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-13 with Science categories.
A blend of theory and practical advice, Modern NMR Techniques for Synthetic Chemistry illustrates how NMR spectroscopy can be used to determine the abundance, size, shape, and function of organic molecules. It provides you with a description the NMR technique used (more pictorial than mathematical), indicating the most common pulse sequences, some practical information as appropriate, followed by illustrative examples. This format is followed for each chapter so you can skip the more theoretical details if the practical aspects are what interest you. Following a discussion of basic parameters, the book describes the utility of NMR in detecting and quantifying dynamic processes, with particular emphasis on the usefulness of saturation-transfer (STD) techniques. It details pulsed–field gradient approaches to diffusion measurement, diffusion models, and approaches to ‘inorganic’ nuclei detection, important as many synthetic pathways to new organics involve heavier elements. The text concludes with coverage of applications of NMR to the analysis of complex mixtures, natural products, carbohydrates, and nucleic acids—all areas of activity for researchers working at the chemistry-life sciences interface. The book’s unique format provides some theoretical insight into the NMR technique used, indicating the most common pulse sequences. The book draws upon several NMR methods that are resurging or currently hot in the field and indicates the specific pulse sequence used by various spectrometer manufacturers for each technique. It examines the analysis of complex mixtures, a feature not found in most books on this topic.