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Books > Science & Mathematics > Chemistry > Physical chemistry

Biosensors Based on Aptamers and Enzymes (Hardcover, 2014): Man Bock Gu, Hak-Sung Kim Biosensors Based on Aptamers and Enzymes (Hardcover, 2014)
Man Bock Gu, Hak-Sung Kim
R6,744 Discovery Miles 67 440 Ships in 10 - 15 working days

Volumes are organized topically and provide a comprehensive discussion of developments in the respective field over the past 3-5 years. The series also discusses new discoveries and applications. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification. In general, special volumes are edited by well-known guest editors. The series editor and publisher will however always be pleased to receive suggestions and supplementary information. Manuscripts are accepted in English.

Advanced Materials - Proceedings of the International Conference on "Physics and Mechanics of New Materials and Their... Advanced Materials - Proceedings of the International Conference on "Physics and Mechanics of New Materials and Their Applications", PHENMA 2019 (Hardcover, 1st ed. 2020)
Ivan A. Parinov, Shun-Hsyung Chang, Banh Tien Long
R5,714 Discovery Miles 57 140 Ships in 10 - 15 working days

This book presents selected peer-reviewed contributions from the 2019 International Conference on "Physics and Mechanics of New Materials and Their Applications", PHENMA 2019 (Hanoi, Vietnam, 7-10 November, 2019), divided into four scientific themes: processing techniques, physics, mechanics, and applications of advanced materials. The book describes a broad spectrum of promising nanostructures, crystals, materials and composites with special properties. It presents nanotechnology approaches, modern environmentally friendly techniques and physical-chemical and mechanical studies of the structural-sensitive and physical-mechanical properties of materials. The obtained results are based on new achievements in material sciences and computational approaches, methods and algorithms (in particular, finite-element and finite-difference modeling) applied to the solution of different technological, mechanical and physical problems. The obtained results have a significant interest for theory, modeling and test of advanced materials. Other results are devoted to promising devices demonstrating high accuracy, longevity and new opportunities to work effectively under critical temperatures and high pressures, in aggressive media, etc. These devices demonstrate improved comparative characteristics, caused by developed materials and composites, allowing investigation of physio-mechanical processes and phenomena based on scientific and technological progress.

Controlled Radical Polymerization at and from Solid Surfaces (Hardcover, 1st ed. 2016): Philipp Vana Controlled Radical Polymerization at and from Solid Surfaces (Hardcover, 1st ed. 2016)
Philipp Vana
R6,431 Discovery Miles 64 310 Ships in 10 - 15 working days

The series Advances in Polymer Science presents critical reviews of the present and future trends in polymer and biopolymer science. It covers all areas of research in polymer and biopolymer science including chemistry, physical chemistry, physics, material science. The thematic volumes are addressed to scientists, whether at universities or in industry, who wish to keep abreast of the important advances in the covered topics. Advances in Polymer Science enjoys a longstanding tradition and good reputation in its community. Each volume is dedicated to a current topic, and each review critically surveys one aspect of that topic, to place it within the context of the volume. The volumes typically summarize the significant developments of the last 5 to 10 years and discuss them critically, presenting selected examples, explaining and illustrating the important principles, and bringing together many important references of primary literature. On that basis, future research directions in the area can be discussed. Advances in Polymer Science volumes thus are important references for every polymer scientist, as well as for other scientists interested in polymer science - as an introduction to a neighboring field, or as a compilation of detailed information for the specialist. Review articles for the individual volumes are invited by the volume editors. Single contributions can be specially commissioned. Readership: Polymer scientists, or scientists in related fields interested in polymer and biopolymer science, at universities or in industry, graduate students

Catalysis - Volume 4 (Hardcover, Edition.): C. Kemball, D.A. Dowden Catalysis - Volume 4 (Hardcover, Edition.)
C. Kemball, D.A. Dowden
R10,883 Discovery Miles 108 830 Ships in 10 - 15 working days

There is an increasing challenge for chemical industry and research institutions to find cost-efficient and environmentally sound methods of converting natural resources into fuels chemicals and energy. Catalysts are essential to these processes and the Catalysis Specialist Periodical Report series serves to highlight major developments in this area. This series provides systematic and detailed reviews of topics of interest to scientists and engineers in the catalysis field. The coverage includes all major areas of heterogeneous and homogeneous catalysis and also specific applications of catalysis such as NOx control kinetics and experimental techniques such as microcalorimetry. Each chapter is compiled by recognised experts within their specialist fields and provides a summary of the current literature. This series will be of interest to all those in academia and industry who need an up-to-date critical analysis and summary of catalysis research and applications. Catalysis will be of interest to anyone working in academia and industry that needs an up-to-date critical analysis and summary of catalysis research 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

Electrochemistry: Science and Technology (Hardcover): Heather Wright Electrochemistry: Science and Technology (Hardcover)
Heather Wright
R3,617 R3,269 Discovery Miles 32 690 Save R348 (10%) Ships in 10 - 15 working days
The Law of Mass Action (Hardcover, 2001 ed.): Andrei B. Koudriavtsev, Reginald F. Jameson, Wolfgang Linert The Law of Mass Action (Hardcover, 2001 ed.)
Andrei B. Koudriavtsev, Reginald F. Jameson, Wolfgang Linert
R1,721 Discovery Miles 17 210 Ships in 10 - 15 working days

The theoretical basis of this book is developed ab ovo. This requires dealing with several problems arising in physical chemistry including the concept of entropy as a thermodynamic coordinate and its relation to probability. Thus Maxwell Boltzmann and Gibbs statistical thermodynamics, and quantum statistics are made considerable use of. A statistical mechanical derivation of the law of mass action for gases and solids is presented, and the problems arising in the application of the law of mass action to the liquid state are addressed. Molecular interactions and how to take them into account when deriving the law of mass action is discussed in some detail sketching a way alternativ to the use of activities. Finally, attention is drawn to the statistical mechanical background to Linear Free Energy Relationships (LFER's) and of Isokinetic Relationships (IKR's) and their connections with molecular interactions.

Equilibrium Between Phases of Matter - Supplemental Text for Materials Science and High-Pressure Geophysics (Hardcover, 2012):... Equilibrium Between Phases of Matter - Supplemental Text for Materials Science and High-Pressure Geophysics (Hardcover, 2012)
M. H. G. Jacobs, H. a. J. Oonk
R1,556 Discovery Miles 15 560 Ships in 10 - 15 working days

The Second Volume of Equilibrium between Phases of Matter, when compared with the First Volume, by H.A.J. Oonk and M.T. Calvet, published in 2008, amounts to an extension of subjects, and a deepening of understanding. In the first three sections of the text an extension is given of the theory on isobaric binary systems. The fourth section gives an account of the thermodynamic analyses of four isobaric binary key systems, highlighting the power of empirical, (exo)thermodynamic correlations. The fifth section is devoted to the thermodynamic description of ternary systems. The last three sections concentrate on the properties of materials, and the phase behaviour of systems under the conditions of high temperature and high pressure conditions that prevail in the interior of the Earth. A new equation of state is the subject of the sixth section. In the seventh section a move is made to statistical thermodynamics and vibrational models; the description of the systems has changed from mathematical to physical. The last section is on the system MgO SiO2, looked upon from a geophysical point of view.

Throughout the work high priority is given to the thermodynamic assessment of experimental data; numerous end-of-section exercises and their solutions are included. Along with the First Volume, the work is useful for materials scientists and geophysicists as a reference text.

Audience

Volume II is a lecture book for postgraduate students in chemistry, chemical engineering, geology and metallurgy. It is highly useful as a recommended text for teachers and researchers in all fields of materials science.

"

Nucleic Acids in the Gas Phase (Hardcover, 2014 ed.): Valerie Gabelica Nucleic Acids in the Gas Phase (Hardcover, 2014 ed.)
Valerie Gabelica
R3,896 R3,614 Discovery Miles 36 140 Save R282 (7%) Ships in 10 - 15 working days

This book gives physical chemists a broader view of potential biological applications of their techniques for the study of nucleic acids in the gas phase. It provides organic chemists, biophysicists, and pharmacologists with an introduction to new techniques they can use to find the answers to yet unsolved questions. Laboratory sciences have bloomed with a variety of techniques to decipher the properties of the molecules of life. This volume introduces techniques used to investigate the properties of nucleic acids in the absence of solvent. It highlights the specificities pertaining to the studies of nucleic acids, although some of the techniques can similarly be applied to the study of other biomolecules, like proteins. The first part of the book introduces the techniques, from the transfer of nucleic acids to the gas-phase, to their detailed physico-chemical investigation. Each chapter is devoted to a specific molecular property, and illustrates how various approaches (experimental and theoretical) can be combined for the interpretation.
The second part of the book is devoted to applying the gas-phase approaches to solve specific questions related to the biophysics, biochemistry or pharmacology of nucleic acids.

Metathesis Polymerization of Olefins and Polymerization of Alkynes - Proceedings of the NATO Advanced Study Institute on... Metathesis Polymerization of Olefins and Polymerization of Alkynes - Proceedings of the NATO Advanced Study Institute on Ring-opening Metathesis Polymerization of Olefins and Polymerization of Alkynes, Akcay-Balikesir, Turkey, 3-16 September 1995 (Hardcover)
Yavuz Imamoglu
R2,616 Discovery Miles 26 160 Ships in 10 - 15 working days

This book contains contributions from inorganic, organic and polymer chemists, who report on the state of the art in ring opening metathesis polymerization, acyclic diene metathesis and alkyne polymerization. Topics covered are: mechanism of ROMP reactions, new catalysts for ROMP, new products by ROMP, new catalysts for ADMET, new products by ADMET, degradation of polymers by metathesis reactions, alkyne polymerization and metathesis, and industrial applications of metathesis reactions.

Ions in Water and Biophysical Implications - From Chaos to Cosmos (Hardcover, 2012 ed.): Yizhak Marcus Ions in Water and Biophysical Implications - From Chaos to Cosmos (Hardcover, 2012 ed.)
Yizhak Marcus
R2,886 Discovery Miles 28 860 Ships in 10 - 15 working days

Over the past decade, numerous books have attempted to explain ions in aqueous solutions in relation to biophysical phenomena. Ions in Water and Biophysical Implications, from Chaos to Cosmos offers a physicochemical point of view of the spread of this matter and suggests innovative solutions that will challenge the biophysics research establishment. Starting with a throughout discussion of the properties of liquid water, in particular as a structured liquid with an extensive hydrogen bonded structure, the book examines water as a solvent for gases, non-electrolytes, and electrolytes and reviews the properties, sizes and thermodynamics of isolated and aqueous ions, as well as their interactions, including those of polyelectrolytes. The effects of ions on water structure, including those on solvent dynamics and certain thermodynamic quantities, are presented. This volume investigates water surfaces with its vapour, with another liquid, and with a solid, as well as the effects of solutes, including simple ions and the water-miscible non-electrolytes. Surfaces are relevant to biomolecular and colloidal systems and the book discusses briefly surfactants, micelles and vesicles. Finally, the book concludes with a review of the various biophysical implications involving chaotropic and kosmotropic ions in homogeneous solutions and the Hofmeister series for ions concerning biomolecular and colloidal systems and some aspects of protein hydration and K+/Na+ selectivity in ion channels. Ions in Water and Biophysical Implications, from Chaos to Cosmos will appeal to physical chemists, biophysicists, biochemists, as well as to all students and researchers involved in the study of aqueous solutions.

Electroanalysis in Biomedical and Pharmaceutical Sciences - Voltammetry, Amperometry, Biosensors, Applications (Hardcover, 1st... Electroanalysis in Biomedical and Pharmaceutical Sciences - Voltammetry, Amperometry, Biosensors, Applications (Hardcover, 1st ed. 2015)
Sibel A Ozkan, Jean-Michel Kauffmann, Petr Zuman; Contributions by Ana Maria Oliveira Brett, Christopher Brett, …
R4,256 R3,687 Discovery Miles 36 870 Save R569 (13%) Ships in 10 - 15 working days

Through this monograph, the pharmaceutical chemist gets familiar with the possibilities electroanalytical methods offer for validated analyses of drug compounds and pharmaceuticals. The presentation focuses on the techniques most frequently used in practical applications, particularly voltammetry and polarography. The authors present the information in such a way that the reader can judge whether the application of such techniques offers advantages for solving a particular analytical problem. Basics of individual electroanalytical techniques are outlined using as simple language as possible, with a minimum of mathematical apparatus. For each electroanalytical technique, the physical and chemical processes as well as the instrumentation are described. The authors also cover procedures for the identification of electroactive groups and the chemical and electrochemical processes involved. Understanding the principles of such processes is essential for finding optimum analytical conditions in the most reliable way. Added to this is the validation of such analytical procedures. A particularly valuable feature of this book are extensive tables listing numerous validated examples of practical applications. Various Indices according to the drug type, the electroactive group and the type of method as well as a subject and author index are also provided for easy reference.

Inorganic Metal Oxide Nanocrystal Photocatalysts for Solar Fuel Generation from Water (Hardcover, 2014): Troy K. Townsend Inorganic Metal Oxide Nanocrystal Photocatalysts for Solar Fuel Generation from Water (Hardcover, 2014)
Troy K. Townsend
R2,844 Discovery Miles 28 440 Ships in 10 - 15 working days

Troy Townsend's thesis explores the structure, energetics and activity of three inorganic nanocrystal photocatalysts. The goal of this work is to investigate the potential of metal oxide nanocrystals for application in photocatalytic water splitting, which could one day provide us with clean hydrogen fuel derived from water and solar energy. Specifically, Townsend's work addresses the effects of co-catalyst addition to niobium oxide nanotubes for photocatalytic water reduction to hydrogen, and the first use of iron oxide 'rust' in nanocrystal suspensions for oxygen production. In addition, Townsend studies a nickel/oxide-strontium titanate nanocomposite which can be described as one of only four nanoscale water splitting photocatalysts. He also examines the charge transport for this system. Overall, this collection of studies brings relevance to the design of inorganic nanomaterials for photocatalytic water splitting while introducing new directions for solar energy conversion.

Photonics - Linear and Nonlinear Interactions of Laser Light and Matter (Hardcover, 2nd ed. 2007): Ralf Menzel Photonics - Linear and Nonlinear Interactions of Laser Light and Matter (Hardcover, 2nd ed. 2007)
Ralf Menzel
R4,331 Discovery Miles 43 310 Ships in 10 - 15 working days

Shows how nonlinear phenomena play a more and more important role for everybody using the laser "as a tool," making it unique in this respect.

Provides a basic knowledge of modern lasers, as well as the principles of nonlinear optical spectroscopy (and an exhaustive list of 4000 references)

From first-edition reviews: "Almost a handbook, reviewing in a single author's voice the basic properties of light and its linear and nonlinear interactions with matter, both in the absence and in the presence of absorption." Physics Today

Elementary Inelastic Radiotion Processes (Hardcover, 1991 ed.): M. A. Elango Elementary Inelastic Radiotion Processes (Hardcover, 1991 ed.)
M. A. Elango
R2,961 Discovery Miles 29 610 Ships in 10 - 15 working days

"Blurb & Contents" This collection of articles covers the "quiet revolution" that took place in quantum optics in the 1980s. Explores far-reaching repercussions in methods of light field generation, propagation, and detection in the quantum rather than in the classical regime. Throughout, theory is discussed with supporting experimental data. Newcomers and experienced researchers will find this a useful introduction and an excellent reference. Contents: Introduction. The early years. Photon antibunching and sub- Poissonian photon statistics. Squeezed states of light. Quantum non- demolition. Quantum effects in photon interference. Cavity quantum electrodynamics. Quantum noise reduction in lasers.

Solid State Chemistry (Hardcover, 1st ed): Richard Cropp Solid State Chemistry (Hardcover, 1st ed)
Richard Cropp
R8,055 Discovery Miles 80 550 Ships in 10 - 15 working days

Solid State Chemistry is a general textbook, composed for those with little background knowledge of the subject, but who wish to learn more about the various segments of solid state theory and technology.
The information is presented in a form that can easily be understood and will be useful to readers wishing to build on their own store of knowledge and experience.
Well presented in easy to understand format.
Informative textbook aimed primarily at the novice.
Comprehensively covers the segments of solid state theory and technology.

Advanced Science and Technology of Sintering (Hardcover, 1999 ed.): Biljana D. Stojanovic, Valery V. Skorokhod, Maria Vesna... Advanced Science and Technology of Sintering (Hardcover, 1999 ed.)
Biljana D. Stojanovic, Valery V. Skorokhod, Maria Vesna Nikolic
R6,145 Discovery Miles 61 450 Ships in 10 - 15 working days

This volume entitled Advanced Science and Technology of Sintering, contains the edited Proceedings of the Ninth World Round Table Conference on Sintering (IX WRTCS), held in Belgrade, Yugoslavia, September 1-4 1998. The gathering was one in a series of World Round Table Conferences on Sintering organised every four years by the Serbian Academy of Sciences and Arts (SASA) and the International Institute for the Science of Sintering (IISS). The World Round Table Conferences on Sintering have been traditionally held in Yugoslavia. The first meeting was organised in Herceg Novi in 1969 and since then they have regularly gathered the scientific elite in the science of sintering. It is not by chance that, at these conferences, G. C. Kuczynski, G. V. Samsonov, R. Coble, Ya. E. Geguzin and other great names in this branch of science presented their latest results making great qualitative leaps in the its development. Belgrade hosted this conference for the first time. It was chosen as a reminder that 30 years ago it was the place where the International Team for Sintering was formed, further growing into the International Institute for the Science of Sintering. The IX WRTCS lasted four days. It included 156 participants from 17 countries who presented the results of their theoretical and experimental research in 130 papers in the form of plenary lectures, oral presentations and poster sections.

Quantum Simulations of Materials and Biological Systems (Hardcover, 2012 ed.): Jun Zeng, Ruiqin Zhang, Herbert Treutlein Quantum Simulations of Materials and Biological Systems (Hardcover, 2012 ed.)
Jun Zeng, Ruiqin Zhang, Herbert Treutlein
R2,881 Discovery Miles 28 810 Ships in 10 - 15 working days

Quantum Simulations of Materials and Biological Systems features contributions from leading world experts in the fields of density functional theory (DFT) and its applications to material and biological systems. The recent developments of correlation functionals, implementations of Time-dependent algorithm into DFTB+ method are presented. The applications of DFT method to large materials and biological systems such as understanding of optical and electronic properties of nanoparticles, X-ray structure refinement of proteins, the catalytic process of enzymes and photochemistry of phytochromes are detailed. In addition, the book reviews the recent developments of methods for protein design and engineering, as well as ligand-based drug design. Some insightful information about the 2011 International Symposium on Computational Sciences is also provided. Quantum Simulations of Materials and Biological Systems is aimed at faculties and researchers in the fields of computational physics, chemistry and biology, as well as at the biotech and pharmaceutical industries.

Catalytic Activation of Dioxygen by Metal Complexes (Hardcover, 1992 ed.): Laszlo I. Simandi Catalytic Activation of Dioxygen by Metal Complexes (Hardcover, 1992 ed.)
Laszlo I. Simandi
R5,815 Discovery Miles 58 150 Ships in 10 - 15 working days

The activation of dioxygen by metal ions has both synthetic potential and biological relevance. Dioxygen is the cleanest oxidant for use in emission-free technologies to minimize pollution of the environment. The book gives a survey of those catalyst systems based on metal complexes which have been discovered and studied in the last decade. They activate molecular oxygen and effect the oxidation of various organic compounds under mild conditions. Much of the recent progress is due to a search for biomimetic catalysts that would duplicate the action of metalloenzymes. Mechanistic aspects are emphasized throughout the book. An introductonary chapter reviews the chemistry of transition metal dioxygen complexes, which are usually the active intermediates in the catalytic reactions discussed. Separate chapters are devoted to oxidation of saturated, unsaturated and aromatic hydrocarbons, phenols, catechols, oxo-compounds, phosphorus, sulfur and nitrogen compounds.

Hydrogen Materials Science and Chemistry of Carbon Nanomaterials - Proceedings of the NATO Advanced Research Workshop on... Hydrogen Materials Science and Chemistry of Carbon Nanomaterials - Proceedings of the NATO Advanced Research Workshop on Hydrogen Materials Science an Chemistry of Carbon Nanomaterials, Sudak, Crimea, Ukraine, September 14-20, 2003 (Hardcover, 2004 ed.)
T.Nejat Veziroglu, Svetlana Yu Zaginaichenko, Dmitry V. Schur, B. Baranowski, Anatoliy P. Shpak, …
R8,433 Discovery Miles 84 330 Ships in 10 - 15 working days

The 2003 International Conference "Hydrogen Materials Science and Chemistry of Carbon Nanomaterials" was held in September 2003. In the tradition of the earlier ICHMS conferences, this meeting served as an interdisciplinary forum for the presentation and discussion of the most recent research on transition to hydrogen-based energy systems, technologies for hydrogen production, storage, utilization, materials, energy and environmental problems. The aim of the volume is to provide an overview of the latest scientific results on research and development in the different topics cited above. The representatives from industry, public laboratories, universities and governmental agencies have presented the most recent advances in hydrogen concepts, processes and systems, to evaluate current progress in these areas of investigations and to identify promising research directions for the future.

XUV Pump-Probe Experiments on Diatomic Molecules - Tracing the Dynamics of Electron Rearrangement and Interatomic Coulombic... XUV Pump-Probe Experiments on Diatomic Molecules - Tracing the Dynamics of Electron Rearrangement and Interatomic Coulombic Decay (Hardcover, 2015 ed.)
Kirsten Schnorr
R3,786 R3,504 Discovery Miles 35 040 Save R282 (7%) Ships in 10 - 15 working days

This book explores the relaxation dynamics of inner-valence-ionized diatomic molecules on the basis of extreme-ultraviolet pump-probe experiments performed at the free-electron laser (FEL) in Hamburg. Firstly, the electron rearrangement dynamics in dissociating multiply charged iodine molecules is studied in an experiment that made it possible to access charge transfer in a thus far unexplored quasimolecular regime relevant for plasma and chemistry applications of the FEL. Secondly the lifetime of an efficient non-radiative relaxation process that occurs in weakly bound systems is measured directly for the first time in a neon dimer (Ne2). Interatomic Coulombic decay (ICD) has been identified as the dominant decay mechanism in inner-valence-ionized or excited van-der-Waals and hydrogen bonded systems, the latter being ubiquitous in all biomolecules. The role of ICD in DNA damage thus demands further investigation, e.g. with regard to applications like radiation therapy.

The Reaction Path in Chemistry: Current Approaches and Perspectives (Hardcover, 1995 ed.): D. Heidrich The Reaction Path in Chemistry: Current Approaches and Perspectives (Hardcover, 1995 ed.)
D. Heidrich
R4,526 Discovery Miles 45 260 Ships in 10 - 15 working days

The so-called reaction path (RP) with respect to the potential energy or the Gibbs energy ("free enthalpy") is one of the most fundamental concepts in chemistry. It significantly helps to display and visualize the results of the complex microscopic processes forming a chemical reaction. This concept is an implicit component of conventional transition state theory (TST). The model of the reaction path and the TST form a qualitative framework which provides chemists with a better understanding of chemical reactions and stirs their imagination. However, an exact calculation of the RP and its neighbourhood becomes important when the RP is used as a tool for a detailed exploring of reaction mechanisms and particularly when it is used as a basis for reaction rate theories above and beyond TST. The RP is a theoretical instrument that now forms the "theoretical heart" of "direct dynamics." It is particularly useful for the interpretation of reactions in common chemical systems. A suitable definition of the RP of potential energy surfaces is necessary to ensure that the reaction theories based on it will possess sufficiently high quality. Thus, we have to consider three important fields of research: - Analysis of potential energy surfaces and the definition and best calculation of the RPs or - at least - of a number of selected and chemically interesting points on it. - The further development of concrete vers ions of reaction theory beyond TST which are applicable for common chemical systems using the RP concept.

Transition Metal and Rare Earth Compounds - Excited States, Transitions, Interactions II (Hardcover, 2001 ed.): Hartmut Yersin Transition Metal and Rare Earth Compounds - Excited States, Transitions, Interactions II (Hardcover, 2001 ed.)
Hartmut Yersin; Contributions by D. Donges, D. R. Gamelin, H U Gudel, M J Riley, …
R9,624 Discovery Miles 96 240 Ships in 10 - 15 working days

There exists a large literature on the spectroscopic properties of copper(II) com- 9 pounds. This is due to the simplicity of the d electron configuration, the wide variety of stereochemistries that copper(II) compounds can adopt, and the f- xional geometric behavior that they sometimes exhibit [1]. The electronic and geometric properties of a molecule are inexorably linked and this is especially true with six-coordinate copper(II) compounds which are subject to a Jahn-T- ler effect.However,the spectral-structural correlations that are sometimes d- wn must often be viewed with caution as the information contained in a typical solution UV-Vis absorption spectrum of a copper(II) compound is limited. Meaningful spectral-structural correlations can be obtained in a related series of compounds where detailed spectroscopic data is available. In the fol- 4- lowing sections two such series are examined; the six-coordinate CuF and 6 2+ Cu(H O) ions doped as impurities in single crystal hosts.Using low tempera- 2 6 ture polarized optical spectroscopy and electron paramagnetic resonance, a very detailed picture can be drawn about the geometry of these ions in both their ground and excited electronic states. We then compare the spectrosco- cally determined structural data with that obtained from X-ray diffraction or EXAFS measurements.

Metal-Ligand Co-operativity - Catalysis and the Pincer-Metal Platform (Hardcover, 1st ed. 2021): Gerard van Koten, Karl... Metal-Ligand Co-operativity - Catalysis and the Pincer-Metal Platform (Hardcover, 1st ed. 2021)
Gerard van Koten, Karl Kirchner, Marc-Etienne Moret
R8,724 Discovery Miles 87 240 Ships in 10 - 15 working days

This book provides researchers in the fields of organic chemistry, organometallic chemistry and homogeneous catalysis with an overview of significant recent developments in the area of metal-ligand cooperativity, with a focus on pincer architectures. The various contributions highlight the widespread impact of M-L co-operativity phenomena on modern organometallic chemistry and catalyst development. The development of efficient and selective catalytic transformations relies on the understanding and fine control of the various elementary reactions that constitutes a catalytic cycle. Co-operative ligands, which actively participate in bond making and bond breaking together to the metal they support, open up new avenues in this area. In particular, buttressing a weak or reactive metal-ligand bond by flanking coordinating arms in a pincer ligand design is proving a versatile strategy to access robust metal complexes that exhibit unusual and selective reactivity patterns.

Bio-inspired Catalysts (Hardcover, 2009 ed.): Thomas R. Ward Bio-inspired Catalysts (Hardcover, 2009 ed.)
Thomas R. Ward
R5,564 Discovery Miles 55 640 Ships in 10 - 15 working days

In order to meet the ever-increasing demands for enantiopure compounds, heteroge- ous, homogeneous and enzymatic catalysis evolved independently in the past. Although all three approaches have yielded industrially viable processes, the latter two are the most widely used and can be regarded as complementary in many respects. Despite the progress in structural, computational and mechanistic studies, however, to date there is no universal recipe for the optimization of catalytic processes. Thus, a trial-and-error approach remains predominant in catalyst discovery and optimization. With the aim of complementing the well-established fields of homogeneous and enzymatic catalysis, organocatalysis and artificial metalloenzymes have enjoyed a recent revival. Artificial metalloenzymes, which are the focus of this book, result from comb- ing an active but unselective organometallic moiety with a macromolecular host. Kaiser and Whitesides suggested the possibility of creating artificial metallo- zymes as long ago as the late 1970s. However, there was a widespread belief that proteins and organometallic catalysts were incompatible with each other. This severely hampered research in this area at the interface between homogeneous and enzymatic catalysis. Since 2000, however, there has been a growing interest in the field of artificial metalloenzymes for enantioselective catalysis. The current state of the art and the potential for future development are p- sented in five well-balanced chapters. G. Roelfes, B. Feringa et al. summarize research relying on DNA as a macromolecular host for enantioselective catalysis.

Fundamentals of  Nanoscale Film Analysis (Hardcover, 2007 ed.): Terry L. Alford, L.C. Feldman, James W. Mayer Fundamentals of Nanoscale Film Analysis (Hardcover, 2007 ed.)
Terry L. Alford, L.C. Feldman, James W. Mayer
R2,941 Discovery Miles 29 410 Ships in 10 - 15 working days

From materials science to integrated circuit development, much of modern technology is moving from the microscale toward the nanoscale. This book focuses on the fundamental physics underlying innovative techniques for analyzing surfaces and near-surfaces. New analytical techniques have emerged to meet these technological requirements, all based on a few processes that govern the interactions of particles and radiation with matter. This book addresses the fundamentals and application of these processes, from thin films to field effect transistors.

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