Spin Dynamics In Radical Pairs

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Spin Dynamics in Radical Pairs

Author : Alan Lewis
Publisher :
ISBN 13 : 9783030006877
Total Pages : pages
Book Rating : 4.0/5 (68 download)

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Book Synopsis Spin Dynamics in Radical Pairs by : Alan Lewis

Download or read book Spin Dynamics in Radical Pairs written by Alan Lewis and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sheds new light on the dynamical behaviour of electron spins in molecules containing two unpaired electrons (i.e. a radical pair). The quantum dynamics of these spins are made complicated by the interaction between the electrons and the many nuclear spins of the molecule; they are intractable using analytical techniques, and a naïve numerical diagonalization is not remotely possible using current computational resources. Hence, this book presents a new method for obtaining the exact quantum-mechanical dynamics of radical pairs with a modest number of nuclear spins. Readers will learn how a calculation that would take 13 years using conventional wavepacket propagation can now be done in 1 day, and will also discover a new semiclassical method for approximating the dynamics in the presence of many nuclear spins. The new methods covered in this book are shown to provide significant insights into three topical and diverse areas: charge recombination in molecular wires (which can be used in artificially mimicking photosynthesis), magnetoelectroluminescence in organic light-emitting diodes, and avian magnetoreception (how birds sense the Earth's magnetic field in order to navigate).

Spin Dynamics in Radical Pairs

Author : Alan Lewis
Publisher : Springer
ISBN 13 : 3030006867
Total Pages : 156 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Spin Dynamics in Radical Pairs by : Alan Lewis

Download or read book Spin Dynamics in Radical Pairs written by Alan Lewis and published by Springer. This book was released on 2018-09-12 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sheds new light on the dynamical behaviour of electron spins in molecules containing two unpaired electrons (i.e. a radical pair). The quantum dynamics of these spins are made complicated by the interaction between the electrons and the many nuclear spins of the molecule; they are intractable using analytical techniques, and a naïve numerical diagonalization is not remotely possible using current computational resources. Hence, this book presents a new method for obtaining the exact quantum-mechanical dynamics of radical pairs with a modest number of nuclear spins. Readers will learn how a calculation that would take 13 years using conventional wavepacket propagation can now be done in 1 day, and will also discover a new semiclassical method for approximating the dynamics in the presence of many nuclear spins. The new methods covered in this book are shown to provide significant insights into three topical and diverse areas: charge recombination in molecular wires (which can be used in artificially mimicking photosynthesis), magnetoelectroluminescence in organic light-emitting diodes, and avian magnetoreception (how birds sense the Earth’s magnetic field in order to navigate).

Introduction to Dynamic Spin Chemistry

Author : Hisaharu Hayashi
Publisher : World Scientific
ISBN 13 : 9789812384232
Total Pages : 272 pages
Book Rating : 4.3/5 (842 download)

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Book Synopsis Introduction to Dynamic Spin Chemistry by : Hisaharu Hayashi

Download or read book Introduction to Dynamic Spin Chemistry written by Hisaharu Hayashi and published by World Scientific. This book was released on 2004 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readership: Graduate students, researchers and industrialists in chemistry, physics and biology.

Simulation Studies of Recombination Kinetics and Spin Dynamics in Radiation Chemistry

Author : Amit Agarwal
Publisher : Springer Science & Business
ISBN 13 : 3319062727
Total Pages : 339 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Simulation Studies of Recombination Kinetics and Spin Dynamics in Radiation Chemistry by : Amit Agarwal

Download or read book Simulation Studies of Recombination Kinetics and Spin Dynamics in Radiation Chemistry written by Amit Agarwal and published by Springer Science & Business. This book was released on 2014-04-23 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amit Agarwal’s thesis reports a substantial contribution to the microscopic simulation of radiation chemical reactions. In his research Agarwal extends existing models to further understand scavenging, spin and relaxation effects. This research has advanced the development of both the Monte Carlo Random Flights and the Independent Reaction Times (IRT) simulation tools. Particular highlights are the extension of these tools to include both the spin-exchange interaction and spin relaxation, both of which are influential in radiolytic systems where many reactions are spin-controlled. In addition, the study has led to the discovery of a novel correlation of the scavenging rate with the recombination time in low permittivity solvents. This finding goes against existing assumptions underlying the theory of diffusion kinetics while still being accommodated in the IRT method which demonstrates the power of this unconventional approach. The work in this thesis can be applied to a wide number of fields including the nuclear industry, medicine, food treatment, polymer curing, the preparation of nano-colloids, power generation and waste disposal.

Principles of Electron Spin Resonance

Author : Neil Manning Atherton
Publisher : Prentice Hall
ISBN 13 :
Total Pages : 622 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Principles of Electron Spin Resonance by : Neil Manning Atherton

Download or read book Principles of Electron Spin Resonance written by Neil Manning Atherton and published by Prentice Hall. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Carbon-Centered Free Radicals and Radical Cations

Author : Malcolm D. Forbes
Publisher : John Wiley & Sons
ISBN 13 : 9780470584101
Total Pages : 300 pages
Book Rating : 4.5/5 (841 download)

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Book Synopsis Carbon-Centered Free Radicals and Radical Cations by : Malcolm D. Forbes

Download or read book Carbon-Centered Free Radicals and Radical Cations written by Malcolm D. Forbes and published by John Wiley & Sons. This book was released on 2010-01-22 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the most advanced computational and experimental methods for studying carbon-centered radical intermediates With its focus on the chemistry of carbon-centered radicals and radical cations, this book helps readers fully exploit the synthetic utility of these intermediates in order to prepare fine chemicals and pharmaceutical products. Moreover, it helps readers better understand their role in complex atmospheric reactions and biological systems. Thoroughly up to date, the book highlights the most advanced computational and experimental methods available for studying and using these critically important intermediates. Carbon-Centered Free Radicals and Radical Cations begins with a short history of the field of free radical chemistry, and then covers: A discussion of the relevant theory Mechanistic chemistry, with an emphasis on synthetic utility Molecular structure and mechanism, focusing on computational methods Spectroscopic investigations of radical structure and kinetics, including demonstrations of spin chemistry techniques such as CIDNP and magnetic field effects Free radical chemistry in macromolecules Each chapter, written by one or more leading experts, explains difficult concepts clearly and concisely, with references to facilitate further investigation of individual topics. The authors were selected in order to provide insight into a broad range of topics, including small molecule synthesis, polymer degradation, computational chemistry as well as highly detailed experimental work in the solid, liquid, and gaseous states. This volume is essential for students or researchers interested in building their understanding of the role of carbon-centered radical intermediates in complex systems and how they may be used to develop a broad range of useful products.

Reaction Centers of Photosynthetic Bacteria

Author : M.-E. Michel-Beyerle
Publisher : Springer Science & Business Media
ISBN 13 : 3642612970
Total Pages : 464 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Reaction Centers of Photosynthetic Bacteria by : M.-E. Michel-Beyerle

Download or read book Reaction Centers of Photosynthetic Bacteria written by M.-E. Michel-Beyerle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction Centers of Photosynthetic Bacteria is an updated record on the most recent insight into the struc- ture/function relationship of reaction centers from photosynthetic bacteria. It addresses in particular, interactions and dynamics which determine the ultra-high quantum yield of photoinduced charge separation in these energy-transforming molecular machines. Of particular interest is the still controversial issue of the primary charge separation mechanism as well as the effects of well-defined modifications, introduced either by mutagenic replacements in the protein matrix or by chemical exchange of reaction center pigments. Also described are the methods used for the characterization of interactions and dynamics important for electron transfer processes in the reaction center.

Spin Dynamics

Author : Malcolm H. Levitt
Publisher : Wiley
ISBN 13 : 0470517123
Total Pages : 744 pages
Book Rating : 4.4/5 (75 download)

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Book Synopsis Spin Dynamics by : Malcolm H. Levitt

Download or read book Spin Dynamics written by Malcolm H. Levitt and published by Wiley. This book was released on 2008-07-31 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spin Dynamics: Basics of Nuclear Magnetic Resonance, Second Edition is a comprehensive and modern introduction which focuses on those essential principles and concepts needed for a thorough understanding of the subject, rather than the practical aspects. The quantum theory of nuclear magnets is presented within a strong physical framework, supported by figures. The book assumes only a basic knowledge of complex numbers and matrices, and provides the reader with numerous worked examples and exercises to encourage understanding. With the explicit aim of carefully developing the subject from the beginning, the text starts with coverage of quarks and nucleons and progresses through to a detailed explanation of several important NMR experiments, including NMR imaging, COSY, NOESY and TROSY. Completely revised and updated, the Second Edition features new material on the properties and distributions of isotopes, chemical shift anisotropy and quadrupolar interactions, Pake patterns, spin echoes, slice selection in NMR imaging, and a complete new chapter on the NMR spectroscopy of quadrupolar nuclei. New appendices have been included on Euler angles, and coherence selection by field gradients. As in the first edition, all material is heavily supported by graphics, much of which is new to this edition. Written for undergraduates and postgraduate students taking a first course in NMR spectroscopy and for those needing an up-to-date account of the subject, this multi-disciplinary book will appeal to chemical, physical, material, life, medical, earth and environmental scientists. The detailed physical insights will also make the book of interest for experienced spectroscopists and NMR researchers. • An accessible and carefully written introduction, designed to help students to fully understand this complex and dynamic subject • Takes a multi-disciplinary approach, focusing on basic principles and concepts rather than the more practical aspects • Presents a strong pedagogical approach throughout, with emphasis placed on individual spins to aid understanding • Includes numerous worked examples, problems, further reading and additional notes Praise from the reviews of the First Edition: "This is an excellent book... that many teachers of NMR spectroscopy will cherish... It deserves to be a ‘classic’ among NMR spectroscopy texts." NMR IN BIOMEDICINE "I strongly recommend this book to everyone…it is probably the best modern comprehensive description of the subject." ANGEWANDTE CHEMIE, INTERNATIONAL EDITION

Radical Ionic Systems

Author : Anders Lund
Publisher : Springer Science & Business Media
ISBN 13 : 9401137501
Total Pages : 498 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Radical Ionic Systems by : Anders Lund

Download or read book Radical Ionic Systems written by Anders Lund and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now more than 20 years since the book "Radical Ions" edited by Kaiser and Kevan appeared. It contained aspects regarding generation, identification, spin density determination and reactivity of charged molecules with an odd number of electrons. New classes of reactive ion radicals have been detected and characterised since then, most notably cation radicals of saturated organic compounds. Trapping of electrons has been found to occur not only in frozen glasses but also in organic crystals. The structure and reactions of anion radicals of saturated compounds have been clarified during the last 20 years. We have asked leading experts in the field to write separate chapters about cation radicals, anion radicals and trapped electrons as well as more complex systems of biological or technological interest. More attention is paid to recent studies of the ions of saturated compounds than to the older and previously reviewed work on aromatic ions. In the case of trapped electrons full coverage is out of the question, and focus is on recent efforts to characterise the solvation structure in ordered and disordered systems.

Advances in Photochemistry, Volume 23

Author : Douglas C. Neckers
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

Chemical Generation and Reception of Radio-and Microwaves

Author : Anatoly L. Buchachenko
Publisher : John Wiley & Sons
ISBN 13 : 9780471188599
Total Pages : 200 pages
Book Rating : 4.1/5 (885 download)

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Book Synopsis Chemical Generation and Reception of Radio-and Microwaves by : Anatoly L. Buchachenko

Download or read book Chemical Generation and Reception of Radio-and Microwaves written by Anatoly L. Buchachenko and published by John Wiley & Sons. This book was released on 1996-12-17 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: With this first critical overview in a decade, two internationally recognized authorities on spin chemistry make an important contribution to this timely topic in chemical physics. Two novel features of chemical reactions are described: The generation o waves by reactions and the effects of the electromagnetic waves on some chemical reactions. In this sense, this treatise formulates chemical radiophysics as a new field of chemical physics. The authors detail physical and chemical reaction mechanisms, the selection of nuclei by spin orientation and magnetic moment, (non)magnetic isotope separation and accumulation in reaction methods. Coverage features new insights into chemical dynamics and reaction mechanisms. Chemical radiophysics offers new radiospectroscopy techniques of exquisite sensitivity. One brief chapter summarizes the physical basis by which electromagnetic fields could affect reactions of biological significance. Chemical Generation and Reception of Radio- and Microwaves is an essential reference for chemical physicists, physical organic chemists, materials scientists, and radio- and biophysicists.

Theoretical Chemistry for Advanced Nanomaterials

Author : Taku Onishi
Publisher : Springer Nature
ISBN 13 : 9811500061
Total Pages : 547 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Theoretical Chemistry for Advanced Nanomaterials by : Taku Onishi

Download or read book Theoretical Chemistry for Advanced Nanomaterials written by Taku Onishi and published by Springer Nature. This book was released on 2020-02-03 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects recent topics of theoretical chemistry for advanced nanomaterials from the points of view of both computational and experimental chemistry. It is written for computational and experimental chemists, including undergraduate students, who are working with advanced nanomaterials, where collaboration and interplay between computation and experiment are essential. After the general introduction of nanomaterials, several computational approaches are explained in Part II. Each chapter presents not only calculation methods but also concrete calculation results for advanced nanomaterials. Hydride ion conducting nanomaterials, high-k dielectric nanomaterials, and organic electronics are focused on. In Part III, the interplay between computational and experimental approaches is explained. The chapters show calculation results, combined with corresponding experimental data. Dimensionality of nanomaterials, electronic structure of oligomers and nanorods, carbon nanomaterials, and the electronic structure of a nanosized sandwich cluster is looked at carefully. In Part IV, functionality analysis is explained from the point of view of the experimental approach. The emphasis is on the mechanism of photoluminescence and hydrogen generation using silicon nanopowder, the superionic conducting mechanism of glass ceramics, nanoclusters formation on the surface of metal oxides, and the magnetic property of an organic one-dimensional nanochannel. Finally, forthcoming theoretical methods for excited states and quantum dynamics are introduced in Part V.

Hyperpolarization Methods in NMR Spectroscopy

Author : Lars T. Kuhn
Publisher : Springer
ISBN 13 : 364239728X
Total Pages : 304 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Hyperpolarization Methods in NMR Spectroscopy by : Lars T. Kuhn

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 304 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.

Dynamics During Spectroscopic Transitions

Author : Ernst Lippert
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.

Organic Light Emitting Diode

Author : Seung Hwan Ko
Publisher : BoD – Books on Demand
ISBN 13 : 9533072733
Total Pages : 336 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Organic Light Emitting Diode by : Seung Hwan Ko

Download or read book Organic Light Emitting Diode written by Seung Hwan Ko and published by BoD – Books on Demand. This book was released on 2011-07-27 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a collection of latest research developments on Organic light emitting diodes (OLED). It is a promising new research area that has received a lot of attention in recent years. Here you will find interesting reports on cutting-edge science and technology related to materials, fabrication processes, and real device applications of OLEDs. I hope that the book will lead to systematization of OLED study, creation of new research field and further promotion of OLED technology for the bright future of our society.

Encyclopedia of Physical Organic Chemistry, 6 Volume Set

Author : Zerong Wang
Publisher : John Wiley & Sons
ISBN 13 : 1118470451
Total Pages : 4542 pages
Book Rating : 4.1/5 (184 download)

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Book Synopsis Encyclopedia of Physical Organic Chemistry, 6 Volume Set by : Zerong Wang

Download or read book Encyclopedia of Physical Organic Chemistry, 6 Volume Set written by Zerong Wang and published by John Wiley & Sons. This book was released on 2017-04-17 with total page 4542 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Advanced EPR

Author : A.J. Hoff
Publisher : Elsevier
ISBN 13 : 0080933874
Total Pages : 918 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Advanced EPR by : A.J. Hoff

Download or read book Advanced EPR written by A.J. Hoff and published by Elsevier. This book was released on 2012-12-02 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book provides an up-to-date survey of existing EPR techniques and their applications in biology and biochemistry, and also provides a wealth of ideas for future developments in instrumentation and theory. The material is broadly organized into four parts. In the first part (chapters 1 to 6) pulsed EPR is discussed in detail. The second part (chapters 7 to 12) provides detailed discussions of a number of novel and experimental methods. The third part comprises seven chapters on double-resonance techniques, five on ENDOR and two on optically- and reaction yield-detected resonance. The final part is devoted to a thorough discussion of a number of new developments in the application of EPR to various biological and biochemical problems. Advanced EPR will interest biophysicists, physical biochemists, EPR spectroscopists and others who will value the extensive treatment of pulsed EPR techniques, the discussion of new developments in EPR instrumentation, and the integration of theory and experimental details as applied to problems in biology and biochemistry.