Spins in Chemistry

Spins in Chemistry PDF Author: Roy McWeeny
Publisher: Courier Corporation
ISBN: 0486434869
Category : Science
Languages : en
Pages : 178

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Book Description
Originally delivered as a series of lectures, this volume systematically traces the evolution of the "spin" concept from its role in quantum mechanics to its assimilation into the field of chemistry. Author Roy McWeeny presents an in-depth illustration of the deductive methods of quantum theory and their application to spins in chemistry, following the path from the earliest concepts to the sophisticated physical methods employed in the investigation of molecular structure and properties. Starting with the origin and development of the spin concept, the text advances to an examination of spin and valence; reviews a simple example of the origin of spin Hamiltonians; and explores spin density, spin populations, and spin correlation. Additional topics include nuclear hyperfine effects and electron spin-spin coupling, the g tensor, and chemical shifts and nuclear spin-spin coupling.

Spins in Chemistry

Spins in Chemistry PDF Author: Roy McWeeny
Publisher: Courier Corporation
ISBN: 0486434869
Category : Science
Languages : en
Pages : 178

Get Book Here

Book Description
Originally delivered as a series of lectures, this volume systematically traces the evolution of the "spin" concept from its role in quantum mechanics to its assimilation into the field of chemistry. Author Roy McWeeny presents an in-depth illustration of the deductive methods of quantum theory and their application to spins in chemistry, following the path from the earliest concepts to the sophisticated physical methods employed in the investigation of molecular structure and properties. Starting with the origin and development of the spin concept, the text advances to an examination of spin and valence; reviews a simple example of the origin of spin Hamiltonians; and explores spin density, spin populations, and spin correlation. Additional topics include nuclear hyperfine effects and electron spin-spin coupling, the g tensor, and chemical shifts and nuclear spin-spin coupling.

Introduction to Dynamic Spin Chemistry

Introduction to Dynamic Spin Chemistry PDF Author: Hisaharu Hayashi
Publisher: World Scientific
ISBN: 9789812384232
Category : Science
Languages : en
Pages : 272

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Book Description
Readership: Graduate students, researchers and industrialists in chemistry, physics and biology.

Spin States in Biochemistry and Inorganic Chemistry

Spin States in Biochemistry and Inorganic Chemistry PDF Author: Marcel Swart
Publisher: John Wiley & Sons
ISBN: 1118898281
Category : Science
Languages : en
Pages : 500

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Book Description
It has long been recognized that metal spin states play a central role in the reactivity of important biomolecules, in industrial catalysis and in spin crossover compounds. As the fields of inorganic chemistry and catalysis move towards the use of cheap, non-toxic first row transition metals, it is essential to understand the important role of spin states in influencing molecular structure, bonding and reactivity. Spin States in Biochemistry and Inorganic Chemistry provides a complete picture on the importance of spin states for reactivity in biochemistry and inorganic chemistry, presenting both theoretical and experimental perspectives. The successes and pitfalls of theoretical methods such as DFT, ligand-field theory and coupled cluster theory are discussed, and these methods are applied in studies throughout the book. Important spectroscopic techniques to determine spin states in transition metal complexes and proteins are explained, and the use of NMR for the analysis of spin densities is described. Topics covered include: DFT and ab initio wavefunction approaches to spin states Experimental techniques for determining spin states Molecular discovery in spin crossover Multiple spin state scenarios in organometallic reactivity and gas phase reactions Transition-metal complexes involving redox non-innocent ligands Polynuclear iron sulfur clusters Molecular magnetism NMR analysis of spin densities This book is a valuable reference for researchers working in bioinorganic and inorganic chemistry, computational chemistry, organometallic chemistry, catalysis, spin-crossover materials, materials science, biophysics and pharmaceutical chemistry.

Spin Chemical Physics of Graphene

Spin Chemical Physics of Graphene PDF Author: Elena Sheka
Publisher: CRC Press
ISBN: 1351858599
Category : Science
Languages : en
Pages : 395

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Book Description
Graphene’s nickname ‘miracle material’ normally means the material superior properties. However, all these characteristics are only the outward manifestation of the wonderful nature of graphene. The real miracle of graphene is that the specie is a union of two entities: a physical - and a chemical one, each of which is unique in its own way. The book concerns a very close interrelationship between graphene physics and chemistry as expressed via typical spin effects of a chemical physics origin. Based on quantum-chemical computations, the book is nevertheless addressed to the reflection of physical reality and it is aimed at an understanding of what constitutes graphene as an object of material science – sci graphene – on the one hand, and as a working material- high tech graphene - for a variety of attractive applications largely discussed and debated in the press, on the other. The book is written by a user of quantum chemistry, sufficiently experienced in material science, and the chemical physics of graphene is presented as the user view based on results of extended computational experiments in tight connection with their relevance to physical and chemical realities. The experiments have been carried out at the same theoretical platform, which allows considering different sides of the graphene life at the same level in light of its chemical peculiarity.

Electron Spin Interactions in Chemistry and Biology

Electron Spin Interactions in Chemistry and Biology PDF Author: Gertz Likhtenshtein
Publisher: Springer
ISBN: 3319339273
Category : Science
Languages : en
Pages : 355

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Book Description
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.

Long-lived Nuclear Spin Order

Long-lived Nuclear Spin Order PDF Author: Giuseppe Pileio
Publisher: Royal Society of Chemistry
ISBN: 1788015681
Category : Medical
Languages : en
Pages : 462

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Book Description
The idea that a long-lived form of spin order, namely singlet order, can be prepared from nuclear spin magnetisation first emerged in 2004. The unusual properties of singlet order–its long lifetime and the fact that it is NMR silent but interconvertible into other forms of NMR active order—make it a ‘smart tag’ that can be used to store information for a long time or through distant space points. It is not unexpected then, that since its first appearance, this idea has caught the attention of research groups interested in exploiting this form of order in different fields of research spanning from biology to materials science and from hyperpolarisation to quantum computing. This first book on the subject gives a thorough description of the various aspects that affect the development of the topic and details the interdisciplinary applications. The book starts with a section dedicated to the basic theories of long-lived spin order and then proceeds with a description of the state-of-the-art experimental techniques developed to manipulate singlet order. It then concludes by covering the generalization of the concept of singlet order by introducing and discussing other forms of long-lived spin order.

Electron Spin Resonance

Electron Spin Resonance PDF Author: Philip Henri Rieger
Publisher: Royal Society of Chemistry
ISBN: 0854043551
Category : Medical
Languages : en
Pages : 186

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Book Description
This book describes in mathematical terms the extraction of useful information from ESR spectra as applied to paramagnetic organic, inorganic and organometalic molecules. It lays a firm groundwork for understanding more sophisticated experiments, which the availability of newer commercial instruments has made possible. It takes the reader step by step through obtaining and interpretating ESR spectra of paramagnetic molecules. The mathematical basis of each observed phenomena are detailed and examples given. In particular there is a detailed discussion of 2nd order pertubation theory treatment of the Spin Hamiltonian for non-coincident G and A axes.

Magnetic Effects Across Biochemistry, Molecular Biology and Environmental Chemistry

Magnetic Effects Across Biochemistry, Molecular Biology and Environmental Chemistry PDF Author: A L Buchachenko
Publisher: Elsevier
ISBN: 0443298203
Category : Science
Languages : en
Pages : 124

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Book Description
Magnetic effects across biochemistry, molecular biology and environmental chemistry: Genes, brain and cancer under magnetic control provides an overview of the influence of magnetism upon molecular and biochemical processes and its impact on disease, health and organisms.This book provides an understanding of key concepts behind magnetic fields before exploring their biological significance. It elucidates when and why magnetic effects arise, how they function, and how they can be utilized. Molecular mechanisms underlying magnetic effects and the impact of magnetism on genes are explored. Additionally, magnetic control in treatment of diseases, including cancer, heart disease, and neurological disease is investigated. This book explores a rapidly developing and intriguing field of science, providing a basis for future study in the field of magneto-biology, and is a useful reference for researchers across biochemistry, molecular biology, biophysics and related fields.• Explores the mechanisms of magnetic fields and magnetic isotope effects at a molecular and biochemical level • Identifies key background concepts and function of magnetic fields across biology and chemistry • Covers magnetic control in the context of genes, including key processes such as DNA synthesis, magnetically induced DNA damage, and magnetic control of DNA repair • Demonstrates a new, radical pair mechanism as a means to stimulate ATP synthesis in living organisms for prevention of diseases

Encyclopedia of Physical Organic Chemistry, 6 Volume Set

Encyclopedia of Physical Organic Chemistry, 6 Volume Set PDF Author: Zerong Wang
Publisher: John Wiley & Sons
ISBN: 1118470451
Category : Science
Languages : en
Pages : 4542

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Book Description
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

Radiation Chemistry

Radiation Chemistry PDF Author: C.D. Jonah
Publisher: Elsevier
ISBN: 008054021X
Category : Science
Languages : en
Pages : 777

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Book Description
During the twentieth century, radiation chemistry emerged as a multi-faceted field encompassing all areas of science. Radiation chemical techniques are becoming increasingly popular and are being routinely used not only by chemists but also by biologists, polymer scientists, etc. "Radiation Chemistry: Present Status and Future Trends" presents an overall view of the different aspects of the subject. The chapters review the current status of the field and present the future opportunities in utilizing radiation chemical techniques. This will be of interest to chemists in general and in particular to radiation chemists, chemical kineticists, photochemists, physical-organic chemists and spectroscopists. In view of the diverse nature of the field, the book is a multi-authored effort by several experts in their particular areas of research. Six main areas, both basic and applied, were identified and the book is organized around them. The topics were selected in terms of their relative importance and the contribution of radiation chemistry to the general areas of chemistry, biology and physics. The topics covered are as diverse as gas phase radiation chemistry, the use of radiation chemical techniques, the treatment of water pollutants, the chemical basis of radiation biology, and muonium chemistry. The book also contains an update of the next generation electron accelerators.