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Books > Science & Mathematics > Chemistry > Physical chemistry
The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics of pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors. All chapters from Topics in Organometallic Chemistry are published OnlineFirst with an individual DOI. In references, Topics in Organometallic Chemistry is abbreviated as Top Organomet Chem and cited as a journal
This volume describes the application of fluorescence spectroscopy in polymer research. The first chapters outline the basic principles of the conformational and dynamic behavior of polymers and review the problems of polymer self-assembly. Subsequent chapters introduce the theoretical principles of advanced fluorescence methods and typical examples of their application in polymer science. The book closes with several reviews of various fluorescence applications for studying specific aspects of polymer-solution behavior. It is a useful resource for polymer scientists and experts in fluorescence spectroscopy alike, facilitating their communication and cooperation.
This book presents a collection of selected reviews from PLMMP 2018 that address modern problems in the fields of liquids, solutions and confined systems, critical phenomena, as well as colloidal and biological systems. The papers focus on state-of-the-art developments in the contemporary physics of liquid matter, and are divided into four parts: (i) water and water systems, (ii) physical-chemical properties of liquid systems, (iii) aggregation in liquid systems, and (iv) biological aspects of liquid systems, irradiation influences on liquid systems. Taken together, they cover the latest developments in the broader field of liquid states, including interdisciplinary problems.
This thesis addresses the coordination chemistry and reactivity of copper and gold complexes with a focus on the elucidation of (i) the metal-mediated activation of -bonds and (ii) the migratory insertion reaction. Both processes are of considerable importance in organometallic chemistry, but remain elusive for Cu and Au complexes. In this work, the author contributes significant advances: The first -SiH complexes of copper are experimentally and computationally characterized, yielding valuable insights into -bond activation processes for copper. Evidence for a highly unusual migratory syn insertion of unsaturated organic molecules into the gold-silicon bond of silylgold (I) complexes is provided and the corresponding mechanism identified. The intermolecular oxidative addition of -SiSi, -CC and -CX (X=halogen) bonds with molecular gold (I) complexes is studied in detail, effectively demonstrating that this reaction, usually considered to be impossible for gold, is actually highly favored, provided an adequate ligand is employed. The use of small-bite angle bis (phosphine) gold (I) complexes allows for the first time the oxidative addition of -CC and -CX bonds for gold (I). These results shed light on an unexpected reactivity pattern of gold complexes and may point the way to 2-electron redox transformations mediated by this metal, opening up new perspectives in gold catalysis.
This book presents current research into the catalytic combustion of methane using perovskite-type oxides (ABO3). Catalytic combustion has been developed as a method of promoting efficient combustion with minimum pollutant formation as compared to conventional catalytic combustion. Recent theoretical and experimental studies have recommended that noble metals supported on (ABO3) with well-ordered porous networks show promising redox properties. Three-dimensionally ordered macroporous (3DOM) materials with interpenetrated and regular mesoporous systems have recently triggered enormous research activity due to their high surface areas, large pore volumes, uniform pore sizes, low cost, environmental benignity, and good chemical stability. These are all highly relevant in terms of the utilization of natural gas in light of recent catalytic innovations and technological advances. The book is of interest to all researchers active in utilization of natural gas with novel catalysts. The research covered comes from the most important industries and research centers in the field. The book serves not only as a text for researcher into catalytic combustion of methane, 3DOM perovskite mixed oxide, but also explores the field of green technologies by experts in academia and industry. This book will appeal to those interested in research on the environmental impact of combustion, materials and catalysis.
I. Electron Transfer Reactions.- 1. Electron Transfer: General and Theoretical.- 1.1. Overview and General Aspects of Reactions in Fluid Media.- 1.2. Electronic Coupling (Ke1).- 1.2.1. The Distance Dependence of Electron Transfer Rates.- 1.2.2. Electric and Magnetic Field Effects on Electronic Coupling and Related Problems of Photoinduced Electron Transfer.- 1.3. The Free-Energy Dependence of Electron Transfer Reactions: The "Inverted Region" Problem.- 1.4. The Effects of Solvent Dynamics.- 1.5. Metal-to-Metal and Ligand-to-Ligand Charge Transfer ("Inter-valence" Transfer).- 2. Redox Reactions between Two Metal Complexes.- 2.1. Introduction.- 2.2. Reactions of Metal Aqua and Oxo Ions.- 2.2.1. Titanium.- 2.2.2. Vanadium and Chromium.- 2.2.3. Iron.- 2.2.4. Molybdenum and Tungsten.- 2.3. Reactions of Metal Ion Complexes.- 2.3.1. Chromium.- 2.3.2. Manganese.- 2.3.3. Iron, Ruthenium, and Osmium.- 2.3.4. Cobalt and Rhodium.- 2.3.5. Nickel, Palladium, and Platinum.- 2.3.6. Copper and Silver.- 2.3.7. Technetium and Rhenium.- 2.3.8. Ytterbium.- 2.4. Reactions with Metalloproteins.- 2.4.1. Introduction.- 2.4.2. Copper Proteins.- 2.4.3. Hemoglobin and Myoglobin.- 2.4.4. Cytochromes.- 2.4.5. Iron-Sulfur Proteins.- 3. Metal-Ligand Redox Reactions.- 3.1. Introduction.- 3.2. Oxygen, Peroxide, and Other Oxygen Compounds.- 3.2.1. Dioxygen.- 3.2.2. Hydrogen Peroxide.- 3.2.3. Alkyl Hydroperoxides.- 3.3. Nitrogen Compounds and Oxyanions.- 3.3.1. Hydrazine, Azides, Hydroxylamines, and Derivatives.- 3.3.2. Oxynitrogen Compounds.- 3.3.3. Amines and Nitriles.- 3.4. Sulfur Compounds and Oxyanions.- 3.4.1. Peroxodisulfate and Peroxomonosulfate.- 3.4.2. Sulfur Dioxide and Sulfite Ions.- 3.4.3. Sulfoxides.- 3.4.4. Alkyl Sulfur Compounds.- 3.4.5. Selenium, Tellurium, and Elemental Sulfur.- 3.5. Halogen, Halides, and Halogen Oxyanions.- 3.5.1. Halogens.- 3.5.2. Halides.- 3.5.3. Oxyhalogen Compounds.- 3.6. Phosphorus, Arsenic, and Oxycompounds.- 3.6.1. Phosphorus Oxyanions.- 3.6.2. Phosphines and Arsines.- 3.7. Inorganic Radicals.- 3.8. Ascorbic Acid, Quinols, Catechols, and Diols.- 3.8.1. Ascorbic Acid.- 3.8.2. Aromatic Diols and Diones.- 3.8.3. Aromatic and Aliphatic Alcohols.- 3.9. Carboxylic Acids, Carboxylates, Carbon Dioxide, and Carbon Monoxide.- 3.9.1. Carboxylic Acids and Carboxylates.- 3.9.2. Carbon Dioxide and Carbon Monoxide.- 3.10. Alkyl Halides.- 3.11. Organic Radicals.- II. Substitution and Related Reactions.- 4. Reactions of Compounds of the Nonmetallic Elements.- 4.1. Boron.- 4.2. Carbon.- 4.3. Silicon.- 4.4. Germanium.- 4.5. Nitrogen.- 4.6. Phosphorus.- 4.7. Arsenic.- 4.8. Oxygen.- 4.9. Sulfur.- 4.10. Selenium and Tellurium.- 4.11. Halogens, Krypton, and Xenon.- 4.11.1. Fluorine.- 4.11.2. Chlorine.- 4.11.3. Bromine.- 4.11.4. Iodine.- 4.11.5. Krypton and Xenon.- 4.12. Oscillating Reactions.- 5. Substitution Reactions of Inert-Metal Complexes-Coordination Numbers 4 and 5.- 5.1. Introduction.- 5.2. Associative Ligand Exchange at Square-Planar Platinum(II).- 5.3. Associative Ligand Exchange at Square-Planar Palladium(II).- 5.4. Ligand Exchange at Platinum(II) by Dissociative Processes.- 5.5. Ligand Exchange at Nickel.- 5.6. Reactions of Planar Ir(I), Rh(I), Au(III), and Cu(II) Complexes.- 5.7. Five-Coordinate Species.- 5.8.TransEffect.- 5.9. Isomerizations.- 6. Substitution Reactions of Inert-Metal Complexes-Coordination Numbers 6 and Above: Chromium.- 6.1. Introduction.- 6.2. Aquation and Solvolysis of Chromium(III) Complexes.- 6.2.1. [Cr(III)(L5)X]n+1Systems (L = OH2, NH3).- 6.2.2. Cr(III)-C Bond Rupture.- 6.2.3. Amine and Other Complexes.- 6.2.4. Dechelation/Chelation Processes.- 6.2.5. Metal-Ion-Assisted Aquation.- 6.2.6. Porphyrins.- 6.3. Formation of Chromium(III) Complexes.- 6.3.1. The Nature of the Cr3+Cation in Aqueous Solution.- 6.3.2. Anation Reactions.- 6.4. Base Hydrolysis.- 6.5. Oxidation and Reduction of Cr(III) Complexes.- 6.6. Isomerization and Racemization.- 6.7. Photochemistry and Photophysics of Chromium(III) Complexes.-...
The Elementary Reaction Steps in Heterogeneous Catalysis was studies during the first week in November, 1992, by no fewer than 54 participants, drawn from 11 countries, with both industrial and academic backgrounds. The five sessions reported in the book cover: Catalytic reactivity; Surface science studies in catalysis; In situ methods in catalysis; The contribution of theory to catalytic understanding; and Chemical kinetics and chemical engineering. The book ends with Summary lectures, a list of contributors, and an index.
Among the numerous applications of the rare-earth elements, the field of catalysis accounts for a large number. Catalysis represents approximately 20% of the total market sales of rare earths worldwide. As a matter of fact two main applications have been prominent in the last decades: zeolite stabilization for fluid cracking catalysts, and automotive post-combustion catalytic treatment.
The present work focuses on the development of intensified small-scale extraction units for spent nuclear fuel reprocessing using advanced process engineering with combined experimental and modelling methodologies. It discusses a number of novel elements, such as the intensification of spent fuel reprocessing and the use of ionic liquids as green alternatives to organic solvents. The use of ionic liquids in two-phase liquid-liquid separation is new to the Multiphase Flow community, and has proved to be challenging, especially in small channels, because of the surface and interfacial properties involved, which are very different to those of common organic solvents. Numerical studies have been also performed to couple the hydrodynamics at small scale with the mass transfer. The numerical results, taken together with scale-up studies, are used to evaluate the applicability of the small-scale units in reprocessing large volumes of nuclear waste.
This book serves as a self-contained reference source for engineers, materials scientists, and physicists with an interest in relaxation phenomena. It is made accessible to students and those new to the field by the inclusion of both elementary and advanced math techniques, as well as chapter opening summaries that cover relevant background information and enhance the book's pedagogical value. These summaries cover a wide gamut from elementary to advanced topics. The book is divided into three parts. The opening part, on mathematics, presents the core techniques and approaches. Parts II and III then apply the mathematics to electrical relaxation and structural relaxation, respectively. Part II discusses relaxation of polarization at both constant electric field (dielectric relaxation) and constant displacement (conductivity relaxation), topics that are not often discussed together. Part III primarily discusses enthalpy relaxation of amorphous materials within and below the glass transition temperature range. It takes a practical approach inspired by applied mathematics in which detailed rigorous proofs are eschewed in favor of describing practical tools that are useful to scientists and engineers. Derivations are however given when these provide physical insight and/or connections to other material. A self-contained reference on relaxation phenomena Details both the mathematical basis and applications For engineers, materials scientists, and physicists
The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes for example,such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. Photochemistry reviews photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, Photochemistry comprises sections sub-divided by chromophore and reaction type, and also a comprehensive section on polymer photochemistry.Throughout, emphasis is placed on useful applications of photochemistry.
This highly informative and carefully presented book comprises select proceedings of Foundation for Molecular Modelling and Simulation (FOMMS 2018). The contents are written by invited speakers centered on the theme Innovation for Complex Systems. It showcases new developments and applications of computational quantum chemistry, statistical mechanics, molecular simulation and theory, and continuum and engineering process simulation. This volume will serve as a useful reference to researchers, academicians and practitioners alike.
Catalysis underpins most modern industrial organic processes. It has become an essential tool in creating a 'greener' chemical industry by replacing more traditional stoichiometric reactions, which have high energy consumption and high waste production, with mild processes which increasingly resemble Nature's enzymes. Metal-Catalysis in Industrial Organic Processes considers the major areas of the field and discusses the logic of using catalysis in industrial processes. The book provides information on oxidation, hydrogenation, carbonylation, C-C bond formation, metathesis and polymerization processes, as well as on the mechanisms involved. In addition two appendices offer a concise treatment of homogeneous and heterogenous catalysis. Numerous exercises referring to problems of catalytic processes, and research perspectives complete the book. This definitive reference source, written by practising experts in the field, provides detailed and up-to-date information on key aspects of metal catalysis.
Describing non-equilibrium "cold" plasmas through a chemical physics approach, this book uses the state-to-state plasma kinetics, which considers each internal state as a new species with its own cross sections. Extended atomic and molecular master equations are coupled with Boltzmann and Monte Carlo methods to solve the electron energy distribution function. Selected examples in different applied fields, such as microelectronics, fusion, and aerospace, are presented and discussed including the self-consistent kinetics in RF parallel plate reactors, the optimization of negative ion sources and the expansion of high enthalpy flows through nozzles of different geometries. The book will cover the main aspects of the state-to-state kinetic approach for the description of nonequilibrium cold plasmas, illustrating the more recent achievements in the development of kinetic models including the self-consistent coupling of master equations and Boltzmann equation for electron dynamics. To give a complete portrayal, the book will assess fundamental concepts and theoretical formulations, based on a unified methodological approach, and explore the insight in related scientific problems still opened for the research community.
Advances in Catalysis fills the gap between the journal papers and the textbooks across the diverse areas of catalysis research. For more than 60 years Advances in Catalysis has been dedicated to recording progress in the field of catalysis and providing the scientific community with comprehensive and authoritative reviews. This series is invaluable to chemical engineers and chemists working in the field of catalysis in academia or industry.
The book is a short primer on chemical reaction rates based on a six-lecture first-year undergraduate course taught by the author at the University of Oxford. The book explores the various factors that determine how fast or slowly a chemical reaction proceeds and describes a variety of experimental methods for measuring reaction rates. The link between the reaction rate and the sequence of steps that makes up the reaction mechanism is also investigated. Chemical reaction rates is a core topic in all undergraduate chemistry courses.
"Computer Simulation in Chemical Physics" contains the proceedings of a NATO Advanced Study Institute held at CORISA, Alghero, Sardinia, in September 1992. In the years that have elapsed since the field was last summarised there have been a number of advances which have significantly expanded the scope of the methods. Good examples are the Car-Parrinello method, which allows the study of materials with itinerant electrons; the Gibbs technique for the direct simulation of liquid vapour phase equilibria; the transfer of scaling concepts from simulations of spin models to more complex systems; and the development of the configurational-biased Monte-Carlo methods for studying dense polymers. The field has also been stimulated by an enormous increase in available computing power and the provision of recent software. All these developments, and more, are discussed in an accessible way here, making the text suitable reading for graduate students and research scientists in both academic and industrial settings.
In his thesis, Florian Schweinberger investigates the influence of the precise size of catalytically active species on reactivity. In order to do this he carries out studies both in UHV and under ambient conditions for supported, size-selected Platium clusters (8-68 atoms). Schweinberger probed the electronic structure, adsorption properties and reactivity of two olefins on surfaces and Pt clusters in the submonolayer range. With adsorbed trichloroethene (TCE) a possible cluster-adsorbate induced change in the electronic structure, and for ethene a low-temperature, size-dependent self-/hydrogenation was observed.In a collaborative approach, Schweinberger and colleagues investigated Pt clusters under ambient pressure conditions. They characterised the clusters at at the local and integral level and tested for temperature stability. Experiments in gas phase ?-reactors and in liquid, as part of a hybrid photocatalytic system, revealed size-dependent reactivity.Overall this thesis is not only of interest for those who want to perform similar experiments but also provides superb scientific insights for researchers in the field.
This thesis describes novel strategies for the rational design of several cutting-edge high-efficiency photocatalysts, for applications such as water photooxidation, reduction, and overall splitting using a Z-Scheme system. As such, it focuses on efficient strategies for reducing energy loss by controlling charge transfer and separation, including novel faceted forms of silver phosphate for water photooxidation at record high rates, surface-basic highly polymerised graphitic carbon nitride for extremely efficient hydrogen production, and the first example of overall water splitting using a graphitic carbon nitride-based Z-Scheme system. Photocatalytic water splitting using solar irradiation can potentially offer a zero-carbon renewable energy source, yielding hydrogen and oxygen as clean products. These two 'solar' products can be used directly in fuel cells or combustion to provide clean electricity or other energy. Alternatively they can be utilised as separate entities for feedstock-based reactions, and are considered to be the two cornerstones of hydrogenation and oxidation reactions, including the production of methanol as a safe/portable fuel, or conventional catalytic reactions such as Fischer-Tropsch synthesis and ethylene oxide production. The main driving force behind the investigation is the fact that no photocatalyst system has yet reported combined high efficiency, high stability, and cost effectiveness; though cheap and stable, most suffer from low efficiency.
The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 37 covers literature published from July 2004 to June 2007. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
The rapid growth of biotechnology and drug design, based on rational principles of biopolymer interactions, has generated many developments in the field of biophysical chemistry. This series presents overviews of these developments and of other topical areas that are attracting interest in the field, from methodological developments in high-resolution NMR spectroscopy and molecular modelling to advances in structural chemistry and mechanistic studies of proteins and other biological compounds crucial for drug design.
"Voids in Materials" treats voids of different shapes and forms in various materials, and examines their effects on material properties. The book covers the origins of voids in materials, how they are sometimes introduced in the form of hollow spheres, and the resultant properties of materials containing voids. There are many books that focus on foams (which intentionally
incorporate voids into materials) and that cover voids incidental
to or unwanted in the fabrication of non-porous materials. In fact,
all materials have voids. This book starts from the premise that
voids are pervasive in all material on some level. It goes beyond
foams to provide a comprehensive overview of voids, a central
reference for scientists and engineers to use for the effect of
voids in materials.
The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 34 covers literature published from July 2001 to June 2002. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis. |
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