Download or read book CIDNP Chemically Induced Dynamic Nuclear Polarization and rate processes of radicals written by Jan Anthonie den Hollander and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CIDNP and Rate Processes of Radicals written by Jan Anthonie den Hollander and published by . This book was released on 1976 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Chemically Induced Dynamic Nuclear Polarization CIDNP written by Peter David Livant and published by . This book was released on 1975 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Biophysical Techniques in Photosynthesis written by Thijs Aartsma and published by Springer. This book was released on 2008-02-13 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first volume on Biophysical Techniques in Photosynthesis Research, published in 1996, new experimental techniques and methods have been devised at a rapid pace. The present book is a sequel which complements the publication of the first volume by providing a comprehensive overview of the most important new techniques developed over the past ten years, especially those that are relevant for research on the mechanism and fundamental aspects of photosynthesis.
Download or read book Hyperpolarization Methods in NMR Spectroscopy written by Lars T. Kuhn and published by Springer. This book was released on 2013-09-13 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elucidating Organic Reaction Mechanisms using photo-CIDNP Spectroscopy, by Martin Goez. Parahydrogen Induced Polarization by Homogeneous Catalysis: Theory and Applications, by Kerstin Münnemann et al. Improving NMR and MRI Sensitivity with Parahydrogen, by R. Mewis & Simon Duckett. The Solid-state Photo-CIDNP Effect, by Jörg Matysik et al. Parahydrogen-induced Polarization in Heterogeneous Catalytic Processes, by Igor Koptyug et al. Dynamic Nuclear Polarization Enhanced NMR Spectroscopy, by U. Akbey & H. Oschkinat. Photo-CIDNP NMR Spectroscopy of Amino Acids and Proteins, by Lars T. Kuhn.
Download or read book Advances in Organometallic Chemistry written by and published by Academic Press. This book was released on 1976-07-06 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Organometallic Chemistry
Download or read book Ion Radical Organic Chemistry written by Zory Vlad Todres and published by CRC Press. This book was released on 2008-10-20 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consolidating knowledge from a number of disciplines, Ion-Radical Organic Chemistry: Principles and Applications, Second Edition presents the recent changes that have occurred in the field since the publication of the first edition in 2003. This volume examines the formation, transformation, and application of ion-radicals in typical conditions of organic synthesis. Avoiding complex mathematics, the author explains the principles of ion-radical organic chemistry and presents an overview of organic ion-radical reactions. He reviews methods of determining ion-radical mechanisms and controlling ion-radical reactions. Wherever applicable, the text addresses issues relating to ecology and biomedical concerns as well as inorganic participants of the ion-radical organic reactions. After reviewing the nature of organic ion-radicals and their ground-state electronic structure, the book discusses their formation, the relationship between electronic structure and reactivity, mechanism and regulation of reactions, stereochemical aspects, synthetic opportunities, and practical applications. Additional topics include electronic and opto-electronic devices, organic magnets and conductors, lubricants, other materials, and reactions of industrial or biomedical importance. The book concludes by providing an outlook on possible future development in this field. Researchers and practitioners engaged in active work on synthetic or mechanistic organic chemistry and its practical applications will find this text to be invaluable in both its scope and its depth.
Download or read book Carbon 13 Chemically Induced Dynamic Nuclear Polarization CIDNP written by James P. Galbo and published by . This book was released on 1985 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Chemical Physics and Physical Chemistry written by John H. Moore and published by CRC Press. This book was released on 2023-07-03 with total page 1161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Physical Chemistry and Chemical Physics introduces possibly unfamiliar areas, explains important experimental and computational techniques, and describes modern endeavors. The encyclopedia quickly provides the basics, defines the scope of each subdiscipline, and indicates where to go for a more complete and detailed explanation. Particular attention has been paid to symbols and abbreviations to make this a user-friendly encyclopedia. Care has been taken to ensure that the reading level is suitable for the trained chemist or physicist. The encyclopedia is divided in three major sections: FUNDAMENTALS: the mechanics of atoms and molecules and their interactions, the macroscopic and statistical description of systems at equilibrium, and the basic ways of treating reacting systems. The contributions in this section assume a somewhat less sophisticated audience than the two subsequent sections. At least a portion of each article inevitably covers material that might also be found in a modern, undergraduate physical chemistry text. METHODS: the instrumentation and fundamental theory employed in the major spectroscopic techniques, the experimental means for characterizing materials, the instrumentation and basic theory employed in the study of chemical kinetics, and the computational techniques used to predict the static and dynamic properties of materials. APPLICATIONS: specific topics of current interest and intensive research. For the practicing physicist or chemist, this encyclopedia is the place to start when confronted with a new problem or when the techniques of an unfamiliar area might be exploited. For a graduate student in chemistry or physics, the encyclopedia gives a synopsis of the basics and an overview of the range of activities in which physical principles are applied to chemical problems. It will lead any of these groups to the salient points of a new field as rapidly as possible and gives pointers as to where to read about the topic in more detail.
Download or read book Nitroxides written by Gertz I. Likhtenshtein and published by Springer Nature. This book was released on 2020-01-03 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a pioneer in the development of spin labeling in biophysics, this expert book covers the fundamentals of nitroxide spin labeling through cutting-edge applications in chemistry, physics, materials science, molecular biology, and biomedicine. Nitroxides have earned their place as one of the most popular organic paramagnets due to their suitability as inhibitors of oxidative processes, as a means to polarize magnetic nuclei, and, in molecular biology, as probes and labels to understand molecular structures and dynamics AS DRAGS FOR CANCER AND OTHER DISEASES. Beginning with an overview of the basic methodology and nitroxides’ 145-year history, this book equips students with necessary background and techniques to undertake original research and industry work in this growing field.
Download or read book Photoinitiators written by Jean-Pierre Fouassier and published by John Wiley & Sons. This book was released on 2021-03-08 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive text that covers everything from the processes and mechanisms to the reactions and industrial applications of photoinitiators Photoinitiators offers a wide-ranging overview of existing photoinitiators and photoinitiating systems and their uses in ever-growing green technologies. The authors—noted experts on the topic—provide a concise review of the backgrounds in photopolymerization and photochemistry, explain the available structures, and examine excited state properties, involved mechanisms, and structure, reactivity, and efficiency relationships. The text also contains information on the latest developments and trends in the design of novel tailor-made systems. The book explores the role of current systems in existing and emerging processes and applications. Comprehensive in scope, it covers polymerization of thick samples and in-shadow areas, polymerization under LEDs, NIR light induced thermal polymerization, photoinitiators for novel specific and improved properties, and much more. Written by an experienced and internationally renowned team of authors, this important book: Provides detailed information about excited state processes, mechanisms, and design of efficient photoinitiator systems Discusses the performance of photoinitiators of polymerization by numerous examples of reactions and application Includes information on industrial applications Presents a review of current developments and challenges Offers an introduction to the background information necessary to understand the field Discusses the role played by photoinitiators in a variety of different polymerization reactions Written for polymer chemists, photochemists, and materials scientists, Photoinitiators will also earn a place on the bookshelves of photochemists seeking an authoritative, one-stop guide to the processes, mechanisms, and industrial applications of photoinitiators.
Download or read book Chemically Induced Magnetic Polarization written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foundations of Modern EPR written by Gareth R. Eaton and published by World Scientific. This book was released on 1998 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its inception 50 years ago, electron paramagnetic resonance (EPR, also called ESR or EMR) has become a major tool in diverse fields ranging from biology and chemistry to solid state physics and materials science. This important book includes personal descriptions of early experiments by pioneers who laid the foundations for the field, perspectives on the state of the art, and glimpses of future opportunities. It presents a broad view of the foundations of EPR and its applications, and will therefore appeal to scientists in many fields. Even the expert will find here history not previously recorded and provocative views of future directions.
Download or read book Magnetic Resonance in Colloid and Interface Science written by J. Fraissard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic resonance techniques are especially interesting in the study of colloids and interfaces due to their unique ability to elucidate structure, dynamics and function at the atomic and molecular level. This book illustrates the most up to date applications of innovative NMR and EPR techniques, including magnetic resonance imaging and microscopy, to gas-solid and liquid-solid interfaces, organic and biological surfaces, microemulsions, liquid crystals, membranes, structure and dynamics of polymers and micellar systems, and diffusion in heterogeneous systems. A compendium of advanced NMR and EPR techniques and a state of the art description of the power of advanced new methodologies for the study of molecular dynamics and interfaces.
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
Download or read book Electron Paramagnetic Resonance written by M. J. Davies and published by Royal Society of Chemistry. This book was released on 2004 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the growing volume of published work in this field, researchers will find this book an invaluable source of information on current methods and applications.
