Chemically Induced Dynamic Nuclear and Electron Polarizations-CIDNP and CIDEP

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Publisher : Springer Science & Business Media
ISBN 13 : 3642657931
Total Pages : 126 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Chemically Induced Dynamic Nuclear and Electron Polarizations-CIDNP and CIDEP by : C. Richard

Download or read book Chemically Induced Dynamic Nuclear and Electron Polarizations-CIDNP and CIDEP written by C. Richard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anomalous electron-spin state populations in the Electron Paramagnetic Re sonance (EPR) spectra of radicals formed during radio lysis experiments were observed in 1963 by FESSENDEN and SCHULER [170a]. This phenomenon did not receive much attention at the time. In 1967, BARGON, FISCHER, and JOHNSEN [5] and independently WARD and LAWLER [7,8] reported a similar phenomenon for Nuclear Magnetic Resonance (NMR) spectra taken during radical reactions: emission or enhanced absorption, or both. The earliest attempts to explain this new NMR phenomenon treated these effects in a way similar to that of Dynamic Nuclear Polarization (DNP) or the Overhauser effect. Although the polarization has a completely different origin, DNP gave its name to this effect: Chemically Induced Dynamic Nuclear Polariza tion (CIDNP). [The name Chemically Induced Dynamic Electron Polarization (CIDEP) was introduced later by analogy with CIDNP]. After the initial publica tions, all the new data demonstrated that the first theory could not be correct. In 1969, a new theory was proposed by CLOSS [18] and independently by KAPTEIN and OOSTERHOFF [23] and called the radical-pair theory. This mechanism was proposed to account for the observations of polarization in both NMR and EPR. The radical-pair theory is based on weak interactions in a pair of radicals: the strength of interaction between the electronic states of the radicals depends in particular on the nuclear-spin states.

Chemically Induced Dynamic Nuclear and Electron Polarizations-Cidnp and Cidep

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Publisher :
ISBN 13 : 9783642657948
Total Pages : 136 pages
Book Rating : 4.6/5 (579 download)

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Book Synopsis Chemically Induced Dynamic Nuclear and Electron Polarizations-Cidnp and Cidep by : C. Richard

Download or read book Chemically Induced Dynamic Nuclear and Electron Polarizations-Cidnp and Cidep written by C. Richard and published by . This book was released on 1974-06-07 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemically Induced Dynamic Nuclear Polarization

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)

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Book Synopsis Chemically Induced Dynamic Nuclear Polarization by :

Download or read book Chemically Induced Dynamic Nuclear Polarization written by and published by . This book was released on 1973* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemically Induced Magnetic Polarization

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Publisher : Springer Science & Business Media
ISBN 13 : 9401012652
Total Pages : 412 pages
Book Rating : 4.4/5 (1 download)

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Book Synopsis Chemically Induced Magnetic Polarization by : L.T. Muus

Download or read book Chemically Induced Magnetic Polarization written by L.T. Muus and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic resonance has constantly been able to surprise with its ability to exhibit new phenomena. Just when it appears to be entering a quiet middle age it bursts into activity with some new manifestation of its versatility. This happened a few years ago, when observations on anomalous intensities were looked at more closely, and the pursuit of explanations and further evidence laid the foundations of the subjects treated in this volume. In organizing the NATO Advanced Study Institute we attempted to bring together a number, but by no means all, of those who had contributed significantly to the subject, and to obtain from them a comprehensive and detailed exposition of the subject. We were particularly anxious to avoid a set of lectures that dealt solely with the theory of the subject, because much of the interest in chemically induced magnetic polarization is due to its usefulness in applications to chemical problems: it is a real chemical tech nique, not just an amusing diversion for theoreticians. We set about organizing the course with the idea of making it useful to people who wanted to use the technique (for, after all, in the case of nuclear polarization, CIDNP, the technique can be used in any laboratory with minor modification of standard equipment).

Chlorine, Bromine and Iodine NMR

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Publisher : Springer Science & Business Media
ISBN 13 : 364266363X
Total Pages : 381 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Chlorine, Bromine and Iodine NMR by : B. Lindman

Download or read book Chlorine, Bromine and Iodine NMR written by B. Lindman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing interest in NMR spectroscopy of what in some confer ences in this field is commonly termed "other nuclei" is unmistakable. Chemists and biologists who employ NMR spectroscopy to study their problems have, however, been somewhat reluctant to study nuclei with electric quadrupole moments. These nuclei frequently give rise to broad NMR signals, sometimes too broad to be detectable with ordinary high resolution NMR spectrometers. Spectrometers that could cope with broad NMR signals of low intensity, "wide-line" spectrometers, have been available since the mid 1950:s but it appears that most of these instruments ended up in physical laboratories where the research was primarily directed towards solid state problems. The study of quadrupolar nuclei can provide unique and very valuable information on a variety of physico-chemical and biological systems. For one thing the relaxation of quadrupolar nuclei is in many ways easier to interpret than the relaxation of non-quadrupolar nuclei, since the former is in many cases caused by purely intramolecular interactions modulated by the molecular motion. Studies of quadrupolar relaxation have therefore furnished important information about molec ular reorientation and association in liquids and have played - and will certainly play for many years - an important role in testing new theoretical models of molecular motion in liquids.

Acronyms and Abbreviations in Molecular Spectroscopy

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Publisher : Springer Science & Business Media
ISBN 13 : 3642748694
Total Pages : 322 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Acronyms and Abbreviations in Molecular Spectroscopy by : Detlef A.W. Wendisch

Download or read book Acronyms and Abbreviations in Molecular Spectroscopy written by Detlef A.W. Wendisch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Highly recommended for all academic library chemistry collections; biochemistry and medical collections may also want to consider." (Choice) "Each entry is provided with a definition, a description of the effect, application, and literature citations."... the selection in this book is broad and useful." (J. of Am. Chem. Soc.) "The book is not just a collection of definitions of acronyms, each entry contains a concise and informative explanation of the origins of the technique or method to which it refers... this book is a must for progression of any budding spectroscopist." (Analyst)

Comprehensive Biophysics

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Publisher : Academic Press
ISBN 13 : 0080957188
Total Pages : 3533 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Comprehensive Biophysics by :

Download or read book Comprehensive Biophysics written by and published by Academic Press. This book was released on 2012-04-12 with total page 3533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biophysics is a rapidly-evolving interdisciplinary science that applies theories and methods of the physical sciences to questions of biology. Biophysics encompasses many disciplines, including physics, chemistry, mathematics, biology, biochemistry, medicine, pharmacology, physiology, and neuroscience, and it is essential that scientists working in these varied fields are able to understand each other's research. Comprehensive Biophysics, Nine Volume Set will help bridge that communication gap. Written by a team of researchers at the forefront of their respective fields, under the guidance of Chief Editor Edward Egelman, Comprehensive Biophysics, Nine Volume Set provides definitive introductions to a broad array of topics, uniting different areas of biophysics research - from the physical techniques for studying macromolecular structure to protein folding, muscle and molecular motors, cell biophysics, bioenergetics and more. The result is this comprehensive scientific resource - a valuable tool both for helping researchers come to grips quickly with material from related biophysics fields outside their areas of expertise, and for reinforcing their existing knowledge. Biophysical research today encompasses many areas of biology. These studies do not necessarily share a unique identifying factor. This work unites the different areas of research and allows users, regardless of their background, to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding The field of biophysics counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Biophysics fills this vacuum, being a definitive work on biophysics. It will help users apply context to the diverse journal literature offering, and aid them in identifying areas for further research Chief Editor Edward Egelman (E-I-C, Biophysical Journal) has assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource

Spectroscopic Properties of Inorganic and Organometallic Compounds

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Publisher : Royal Society of Chemistry
ISBN 13 : 184755492X
Total Pages : 557 pages
Book Rating : 4.8/5 (475 download)

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Book Synopsis Spectroscopic Properties of Inorganic and Organometallic Compounds by : N N Greenwood

Download or read book Spectroscopic Properties of Inorganic and Organometallic Compounds written by N N Greenwood and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectroscopic Properties of Inorganic and Organometallic Compounds provides a unique source of information on an important area of chemistry. Divided into sections mainly according to the particular spectroscopic technique used, coverage in each volume includes: NMR (with reference to stereochemistry, dynamic systems, paramagnetic complexes, solid state NMR and Groups 13-18); nuclear quadrupole resonance spectroscopy; vibrational spectroscopy of main group and transition element compounds and coordinated ligands; and electron diffraction. Reflecting the growing volume of published work in this field, researchers will find this Specialist Periodical Report an invaluable source of information on current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr

High Resolution NMR Spectroscopy in Solids

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Publisher : Springer Science & Business Media
ISBN 13 : 3642963323
Total Pages : 257 pages
Book Rating : 4.6/5 (429 download)

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Book Synopsis High Resolution NMR Spectroscopy in Solids by : M. Mehring

Download or read book High Resolution NMR Spectroscopy in Solids written by M. Mehring and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Dynamics During Spectroscopic Transitions

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Publisher : Springer Science & Business Media
ISBN 13 : 3642794076
Total Pages : 598 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Dynamics During Spectroscopic Transitions by : Ernst Lippert

Download or read book Dynamics During Spectroscopic Transitions written by Ernst Lippert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: "How does a photon get into an atom?" This question - fundamental to quantum mechanics - puzzled leading scientists such as Schrödinger and Heisenberg and is still asked by students. James D. Macomber's book was the first to provide a didactic and unified approach to the answer, which has now been updated by way of recent experimental results and modern theoretical interpretations written by leading scientists. It provides an understanding for similarities among the spectroscopic methods available and is stimulating to read, reflecting the excitement of scientific research.

Advances in Photochemistry, Volume 23

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Publisher : John Wiley & Sons
ISBN 13 : 0470133813
Total Pages : 378 pages
Book Rating : 4.4/5 (71 download)

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Book Synopsis Advances in Photochemistry, Volume 23 by : Douglas C. Neckers

Download or read book Advances in Photochemistry, Volume 23 written by Douglas C. Neckers and published by John Wiley & Sons. This book was released on 2009-09-24 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Setting the pace for progress and innovation . . . ADVANCES IN PHOTOCHEMISTRY More than a simple survey of the current literature, Advances in Photochemistry offers critical evaluations written by internationally recognized experts. These pioneering scientists offer unique and varied points of view of the existing data. Their articles are challenging as well as provocative and are intended to stimulate discussion, promote further research, and encourage new developments in the field. In this volume Spectroscopy and Photochemistry of Polyatomic Alkaline Earth-Containing Molecules PETER F. BERNATH Photochemically Induced Dynamic Nuclear Polarization MARTIN GOEZ Photophysics of Gaseous Aromatic Molecules: Excess Vibrational Energy Dependence of Radiationless Processes EDWARD C. LIM Lanthanide Complexes of Encapsulating Ligands as Luminescent Devices NANDA SABBATINI, MASSIMO GUARDIGLI, AND ILSE MANET Advances in the Measurement of Correlation in Photoproduct Motion CHRISTOPHER G. MORGAN, MARCEL DRABBELS, AND ALEC M. WODTKE

Electron Spin Interactions in Chemistry and Biology

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Publisher : Springer
ISBN 13 : 3319339273
Total Pages : 342 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Electron Spin Interactions in Chemistry and Biology by : Gertz Likhtenshtein

Download or read book Electron Spin Interactions in Chemistry and Biology written by Gertz Likhtenshtein and published by Springer. This book was released on 2016-07-25 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the versatile and pivotal role of electron spin interactions in nature. It provides the background, methodologies and tools for basic areas related to spin interactions, such as spin chemistry and biology, electron transfer, light energy conversion, photochemistry, radical reactions, magneto-chemistry and magneto-biology. The book also includes an overview of designing advanced magnetic materials, optical and spintronic devices and photo catalysts. This monograph will be of interest to scientists and graduate students working in the areas related to spin interactions physics, biophysics, chemistry and chemical engineering.

Ab Initio Calculations

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Publisher : Springer Science & Business Media
ISBN 13 : 3642931405
Total Pages : 256 pages
Book Rating : 4.6/5 (429 download)

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Book Synopsis Ab Initio Calculations by : Petr Carsky

Download or read book Ab Initio Calculations written by Petr Carsky and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until recently quantum chemical ab initio calculations were re stricted to atoms and very small molecules. As late as in 1960 Allen l and Karo stated : "Almost all of our ab initio experience derives from diatomic LCAO calculations ••• N and we have found in the litera ture "approximately eighty calculations, three-fourths of which are for diatomic molecules ••• There are approximately twenty ab initio calculations for molecules with more than two atoms, but there is a decided dividing line between the existing diatomic and polyatomic wave functions. Confidence in the satisfactory evaluation of the many -center two-electron integrals is very much less than for the diatom ic case". Among the noted twenty calculations, SiH was the largest 4 molecule treated. In most cases a minimal basis set was used and the many-center two-electron integrals were calculated in an approximate way. Under these circumstances the ab initio calculations could hard ly provide useful chemical information. It is therefore no wonder that the dominating role in the field of chemical applications was played by semiempirical and empirical methods. The situation changed essentially in the next decade. The problem of many-center integrals was solved, efficient and sophisticated computer programs were devel oped, basis sets suitable for a given type of problem were suggested, and, meanwhile, a considerable amount of results has been accumulated which serve as a valuable comparative material. The progress was of course inseparable from the development and availability of computers.

NMR in Medicine

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Publisher : Springer Science & Business Media
ISBN 13 : 3642876358
Total Pages : 175 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis NMR in Medicine by : R. Damadian

Download or read book NMR in Medicine written by R. Damadian and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physical Methods for Inorganic Biochemistry

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Publisher : Springer Science & Business Media
ISBN 13 : 1468449974
Total Pages : 393 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Physical Methods for Inorganic Biochemistry by : John R. Wright

Download or read book Physical Methods for Inorganic Biochemistry written by John R. Wright and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is intended for students and professionals in diverse areas of the biological and biochemical sciences. It is oriented to those who are unfamiliar with the use of physical methods in studies of the biological elements. We hope the reader will find the material a helpful reference for other volumes of this series as well as the general literature, and some may see ways to adopt these techniques in their own pursuits. Every effort has been made to avoid an abstruse presentation. It should be clear that one individual cannot be expert in all the disciplines considered here (and the authors recognize that fact with sin cere humility). As may be expected of an introductory reference, most of our attention was focused on the commonly used methods. To balance this, we have included a few examples of approaches which are promising but relatively undeveloped at this time. Also, an emphasis has been placed on element selectivity. It is impossible to envision the course of future events, and a volume which deals with instrumentation is especially prone to become outdated. Nevertheless, any valid approach to a scientific question should be applicable indefinitely.

Introduction to Polymer Spectroscopy

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Publisher : Springer Science & Business Media
ISBN 13 : 3642693733
Total Pages : 201 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Introduction to Polymer Spectroscopy by : W. Klöpffer

Download or read book Introduction to Polymer Spectroscopy written by W. Klöpffer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has grown out of several courses oflectures held at the University of Mainz in the years 1978 to 1981, at the Ecole Poly technique Federal, Lausanne, and at the University of Fribourg, Switzerland. The last two courses were held in the framework of the "3e Cycle" lectures in June 1981. According to this genesis, the emphasis of the book lies on a unified and concise approach to introducing polymer spectroscopy rather than on completeness which, by the way, could hardly be achieved in a single volume. In contrast to other books on this subject, equal weight is given to electronic spectroscopy, vibrational spectroscopy and spin resonance techniques. The electronic properties of polymers have been increasingly investigated in the last ten years; until recently, however, these studies and the spectroscopic methods applied have not generally been considered as part of polymer spectroscopy. The increasing use of electronic spectroscopy by polymer researchers, on the other hand, shows that this type of spectroscopy provides efficient tools for gaining insight into the properties of polymers which cannot be obtained by any other means.

Catalog of Copyright Entries. Third Series

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Publisher : Copyright Office, Library of Congress
ISBN 13 :
Total Pages : 1328 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Catalog of Copyright Entries. Third Series by : Library of Congress. Copyright Office

Download or read book Catalog of Copyright Entries. Third Series written by Library of Congress. Copyright Office and published by Copyright Office, Library of Congress. This book was released on 1976 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt: