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Books > Science & Mathematics > Chemistry > Physical chemistry

Optical Spectra and Chemical Bonding in Transition Metal Complexes - Special Volume II, dedicated to Professor Jorgensen... Optical Spectra and Chemical Bonding in Transition Metal Complexes - Special Volume II, dedicated to Professor Jorgensen (Hardcover, 2004 ed.)
Thomas Schoenherr
R8,767 Discovery Miles 87 670 Ships in 10 - 15 working days

Axel Christian Klixbull Jorgensen was a "Polyhistor",one of the very few in the highly specialized science of our time.His interests and contributions in ch- istry covered the whole Periodic Table.This statement demonstrates the breadth of his interests,however,it also sheds light on the constraints of chemistry which deals with a large, yet limited number of elements. It is not surprising that Jorgensen went beyond these limits,exploring the probable or plausible ch- istry of yet unknown elements and elementary particles such as quarks. Even chemistry itself did not place rigid limits on his mind,he was able to transfer his chemical concepts to scientific problems far beyond the normal such as in astrophysics. "Structure and Bonding" is intimately associated with the name C.K. J- gensen both as initiator and author over several decades.The appearance of a special edition in memory of this great scientist is a self-evident prolongation of his many contributions to the success of this series.

Chemical Analysis of Antioxidant Capacity - Mechanisms and Techniques (Hardcover): Li Niu, Dongxue Han Chemical Analysis of Antioxidant Capacity - Mechanisms and Techniques (Hardcover)
Li Niu, Dongxue Han
R4,281 Discovery Miles 42 810 Ships in 12 - 17 working days

The book discusses the present strategies towards antioxidant capacity evaluation including optical, chromatography, electrochemical methods as well as photoelectrochemical technique, where the advantages, limitations and different applications are analyzed and compared. Subsequently, the corresponding analysis instruments are introduced and interpreted combining with their technical characteristics, scope and performance indicators.

Molecular Devices for Solar Energy Conversion and Storage (Hardcover, 1st ed. 2018): Haining Tian, Gerrit Boschloo, Anders... Molecular Devices for Solar Energy Conversion and Storage (Hardcover, 1st ed. 2018)
Haining Tian, Gerrit Boschloo, Anders Hagfeldt
R6,424 Discovery Miles 64 240 Ships in 12 - 17 working days

This book shows the different molecular devices used for solar energy conversion and storage and the important characterization techniques for this kind of device. It has five chapters describing representative molecule-based solar cells, such as organic solar cells, dye-sensitized solar cells and hybrid solar cells (perovskite solar cell and quantum dots solar cells). It also includes two chapters demonstrating the use of molecular devices in the areas of solar fuel, water splitting and carbon dioxide reduction. There are further two chapters with interesting examples of solar energy storage related devices, like solar flow battery, solar capacitor and solar energy-thermal energy storage. Three chapters introduce important techniques used to characterize, investigate and evaluate the mechanism of molecular devices. The final chapter discusses the stability of perovskite solar cells. This book is relevant for a wide readership, and is particularly useful for students, researchers and industrial professionals who are working on molecular devices for solar energy utilization.

Bismuth-Mediated Organic Reactions (Hardcover, 2012 ed.): Thierry Ollevier Bismuth-Mediated Organic Reactions (Hardcover, 2012 ed.)
Thierry Ollevier
R9,725 R8,878 Discovery Miles 88 780 Save R847 (9%) Ships in 12 - 17 working days

Bismuth Catalysts in Aqueous Media, by Shu Kobayashi, Masaharu Ueno and Taku Kitanosono.- Pentavalent Organobismuth Reagents in Organic Synthesis: Alkylation, Alcohol Oxidation and Cationic Photopolymerization , by Yoshihiro Matano.- Environmentally Friendly Organic Synthesis Using Bismuth(III) Compounds, by Scott W. Krabbe and Ram S. Mohan.- Bismuth-Catalyzed Addition of Silyl Nucleophiles to Carbonyl Compounds and Imines, by Thierry Ollevier.- Bismuth Salts in Catalytic Alkylation Reactions, by Magnus Rueping and Boris J. Nachtsheim.- New Applications for Bismuth(III) Salts in Organic Synthesis: From Bulk Chemicals to Steroid and Terpene Chemistry, by J. A. R. Salvador, S. M. Silvestre, R. M. A. Pinto, R. C. Santos and C. Le Roux.- Cationic Bismuth-Catalyzed Hydroamination and Direct Substitution of the Hydroxy Group in Alcohols with Amides, by Shigeki Matsunaga and Masakatsu Shibasaki.- Transition-Metal Catalyzed C-C Bond Formation Using Organobismuth Compounds, by Shigeru Shimada and Maddali L. N. Rao.- Bismuth(III) Salts as Synthetic Tools in Organic Transformations, by J. S. Yadav, Aneesh Antony and Basi V. Subba Reddy.

Intramolecular Dynamics - Proceedings of the Fifteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in... Intramolecular Dynamics - Proceedings of the Fifteenth Jerusalem Symposium on Quantum Chemistry and Biochemistry Held in Jerusalem, Israel, March 29-April 1, 1982 (Hardcover, 1982 ed.)
Joshua Jortner, A. Pullman
R6,220 Discovery Miles 62 200 Ships in 10 - 15 working days

The Fifteenth Jerusalem Symposium reflected the high standards of the former international scientific meetings, which convene once a year at the Israel Academy of Sciences and Humanities in Jerusalem to discuss a specific topic in the broad area of quantum chemistry and biochemistry. The topic at this year's Jerusalem Symposium was intramo lecular dynamics, a subject of central interest for theoreticians, che mists and biologists. During the last two decades, there has been remarkable pro gress in our understanding of time dependent phenomena. The development and application of the modern techniques of quantum mechanics and sta tistical mechanics to excited-state dynamics and to chemical and biophy sical systems constitutes a fast developing current research area. The main theme of the Symposium was built around a conceptual framework for the elucidation of photophysical and photochemical phenomena in atoms, molecules, van der Waals complexes and clusters, condensed phases, poly mers and biological supermolecules. The interdisciplinary nature of this research field was deliberated by intensive and extensive interactions between scientists from different disciplines and between theory and experiment. This volume provides a record of the invited lectures at the Symposium."

The Psychological Basis of Perfumery (Hardcover, 4th ed. 1997): J.Stephan Jellinek The Psychological Basis of Perfumery (Hardcover, 4th ed. 1997)
J.Stephan Jellinek
R8,882 Discovery Miles 88 820 Ships in 10 - 15 working days

During the many years of its publication and subsequent revisions, Paul Jellinek's book has been the standard work on its subject. This new edition, translated into English for the first time, was conceived in response to the increased interest in recent years in perfumes and the sense of smell. This interest has come not only from within the highly competitive perfumery industry, but also from psychologists and market researchers. The original text has impressively withstood the test of time and the approach of this new book has been to supplement it with chapters that are now of critical importance, but which were only touched upon in the original book. A market researcher looks at why people use perfumes; a psychologist examines the motivation of perfume choice; another psychologist discusses odours and a perfumer looks at the effects of odours on human experience and behaviour. In the final chapter the editor compares the original author's views with those of today's experts and suggests which aspects are still valid and in what areas divergent views now prevail. This book is written principally to provide a scientific basis to the craft of perfumery and to enable formulators and marketeers to understand why the smells they create and sell have the effect they do. It allows a systematic approach to the development of these products. Others outside the industry, including psychologists in academia, will find the book an essential reference source.

Transport and Reactivity of Solutions in Confined Hydrosystems (Hardcover, 2014 ed.): Lionel Mercury, Niels Tas, Michael... Transport and Reactivity of Solutions in Confined Hydrosystems (Hardcover, 2014 ed.)
Lionel Mercury, Niels Tas, Michael Zilberbrand
R5,070 Discovery Miles 50 700 Ships in 12 - 17 working days

The present work reflects a multi-disciplinary effort to address the topic of confined hydrosystems developed with a cross-fertilization panel of physics, chemists, biologists, soil and earth scientists. Confined hydrosystems include all situations in natural settings wherein the extent of the liquid phase is limited so that the solid-liquid and/or liquid-air interfaces may be critical to the properties of the whole system. Primarily, this so-called "residual" solution is occluded in pores/channels in such a way that decreases its tendency to evaporation, and makes it long-lasting in arid (Earth deserts) and hyper-arid (Mars soils) areas. The associated physics is available from domains like capillarity, adsorption and wetting, and surface forces. However, many processes are still to understand due to the close relationship between local structure and matter properties, the subtle interplay between the host and the guest, the complex intermingling among static reactivity and migration pathway. Expert contributors from Israel, Russia, Europe and US discuss the behaviour of water and aqueous solutes at different scale, from the nanometric range of carbon nanotubes and nanofluidics to the regional scale of aquifers reactive flow in sedimentary basins. This scientific scope allowed the group of participants with very different background to tackle the confinement topic at different scales. The book is organized according to four sections that include: i) flow, from nano- to mega-scale; ii) ions, hydration and transport; iii) in-pores/channels cavitation; iv) crystallization under confinement. Most of contributions relates to experimental works at different resolution, interpreted through classic thermodynamics and intermolecular forces. Simulation techniques are used to explore the atomic scale of interfaces and the migration in the thinnest angstrom-wide channels.

Metal Clusters at Surfaces - Structure, Quantum Properties, Physical Chemistry (Hardcover, 2000 ed.): Karl-Heinz Meiwes-Broer Metal Clusters at Surfaces - Structure, Quantum Properties, Physical Chemistry (Hardcover, 2000 ed.)
Karl-Heinz Meiwes-Broer
R4,886 Discovery Miles 48 860 Ships in 10 - 15 working days

Numerous experiments and calculations have shown that isolated metal clusters possess many interesting features, quite different from those known from surface and solid- state physics or from atomic and molecular physics. The technological exploitation of these new properties, e.g. in miniature electronic or mechanical components, requires the cluster to be brought into an environment such as an encapsulating matrix or a surface. Due to the interaction with the contact medium, the properties of the clusters may change or even disappear. Thus the physics of cluster-on-surface systems -- the main subject of this book -- is of fundamental importance. The book addresses a wide audience, from the newcomer to the expert. Starting from fundamental concepts of adsorbate-surface interactions, the modification of electronic properties through electron confinement, and concepts of cluster production, it elucidates the distinct properties of the new metallic nanostructures.

Analytical Voltammetry, Volume 27 (Hardcover): M.R. Smyth, J.G. Vos Analytical Voltammetry, Volume 27 (Hardcover)
M.R. Smyth, J.G. Vos
R10,008 Discovery Miles 100 080 Ships in 12 - 17 working days

The aim of this volume is to review the state-of-the-art in analytical voltammetry with regard to theory and instrumentation, and show how these relate to the analysis of inorganic, organometallic, organic and biological molecules. Modern voltammetric techniques have practical applications in biological, pharmaceutical and environmental chemistry. The growing importance of voltammetry in the development of modified electrodes and biological electrodes and chemical and biological sensors is also highlighted.

Frontiers of High Pressure Research II: Application of High Pressure to Low-Dimensional Novel Electronic Materials (Hardcover,... Frontiers of High Pressure Research II: Application of High Pressure to Low-Dimensional Novel Electronic Materials (Hardcover, 2001 ed.)
Hans D. Hochheimer, Bogdan Kuchta, Peter K. Dorhout, Jeffery L. Yarger
R4,803 Discovery Miles 48 030 Ships in 12 - 17 working days

In recent interactions with industrial companies it became quite obvious, that the search for new materials with strong anisotropic properties are of paramount importance for the development of new advanced electronic and magnetic devices. The questions concerning the tailoring of materials with large anisotropic electrical and thermal conductivity were asked over and over again. It became also quite clear that the chance to answer these questions and to find new materials which have these desired properties would demand close collaborations between scientists from different fields. Modem techniques ofcontrolled materials synthesis and advances in measurement and modeling have made clear that multiscale complexity is intrinsic to complex electronic materials, both organic and inorganic. A unified approach to classes of these materials is urgently needed, requiring interdisciplinary input from chemistry, materials science, and solid state physics. Only in this way can they be controlled and exploited for increasingly stringent demands oftechnology. The spatial and temporal complexity is driven by strong, often competing couplings between spin, charge and lattice degrees offreedom, which determine structure-function relationships. The nature of these couplings is a sensitive function of electron-electron, electron-lattice, and spin-lattice interactions; noise and disorder, external fields (magnetic, optical, pressure, etc. ), and dimensionality. In particular, these physical influences control broken-symmetry ground states (charge and spin ordered, ferroelectric, superconducting), metal-insulator transitions, and excitations with respect to broken-symmetries created by chemical- or photo-doping, especially in the form of polaronic or excitonic self-trapping.

Organic Inhibitors of Corrosion of Metals (Hardcover, 1996 ed.): Y. I. Kuznetsov Organic Inhibitors of Corrosion of Metals (Hardcover, 1996 ed.)
Y. I. Kuznetsov
R4,737 Discovery Miles 47 370 Ships in 12 - 17 working days

Organic Inhibitors of Corrosion of Metals provides a detailed review of the various theories advanced to explain the mechanisms of organic inhibitors. Author Yu.I. Kuznetsov explores the role of potential and charge of the metal, the nature of the organic species used as the inhibitor, and the function of the solvent. The author draws connections between these key elements and the processes of passivation, pitting, synergism, and complex formation. This unique volume brings together the mechanistic and practical aspects of corrosion control by organic inhibitors.

Polyelectrolyte Complexes in the Dispersed and Solid State I - Principles and Theory (Hardcover, 2014 ed.): Martin Mu>ller Polyelectrolyte Complexes in the Dispersed and Solid State I - Principles and Theory (Hardcover, 2014 ed.)
Martin Mu>ller
R8,058 R6,764 Discovery Miles 67 640 Save R1,294 (16%) Ships in 12 - 17 working days

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.

Applications of Picosecond Spectroscopy to Chemistry (Hardcover, 1984 ed.): K. B Eisenthal Applications of Picosecond Spectroscopy to Chemistry (Hardcover, 1984 ed.)
K. B Eisenthal
R4,753 Discovery Miles 47 530 Ships in 12 - 17 working days

With the development of lasers that can generate light 11 14 pulses ranging from 10- - 10- sec duration, and capable of 13 peak powers in excess of 10 watts scientists have been able to investigate the interactions of light with matter in a time and power domain not previously possible. These ultrashort laser pulses provide a powerful tool for the study of chemical phenomena at the most fundamental level. Many of the elementary processes of importance in chemistry including energy dissipa tion, molecular motions, structural and chemical changes occur on a very short time scale and thus require special approaches. Th use of ultrashort laser pulses to perturb and to probe systems of interest affords a direct approach to the time reso lution of very rapid chemical phenomena. It was recognition of the impact of these relatively new approaches to chemical phenomena that motivated NATO to sponsor a meeting on the applications of picosecond spectroscopy in chemistry. The primary aim of the NATO workshop was to gain some perspective on the status of the field in terms of present research activities, technological developments and if possible the difficult task of sensing future directions. The way we decided to approach these issues was to gather together the main contributors to the field, fortunately many of whom were able to attend, to present their work and to participate in what turned out to be lively discussions of the field."

Molecular Photophysics and Spectroscopy (Second Edition) (Hardcover): David L Andrews, Robert H. Lipson Molecular Photophysics and Spectroscopy (Second Edition) (Hardcover)
David L Andrews, Robert H. Lipson
R2,252 Discovery Miles 22 520 Ships in 12 - 17 working days
Membrane Biophysics - New Insights and Methods (Hardcover, 1st ed. 2018): Hongda Wang, Guohui Li Membrane Biophysics - New Insights and Methods (Hardcover, 1st ed. 2018)
Hongda Wang, Guohui Li
R5,243 Discovery Miles 52 430 Ships in 12 - 17 working days

This book highlights recent advances in and diverse techniques for exploring the plasma membrane's structure and function. It starts with two chapters reviewing the history of membrane research and listing recent advances regarding membrane structure, such as the semi-mosaic model for red blood cell membranes and the protein layer-lipid-protein island model for nucleated tissue cell membranes. It subsequently focuses on the localization and interactions of membrane components, dynamic processes of membrane transport and transmembrane signal transduction. Classic and cutting-edge techniques (e.g. high-resolution atomic force microscopy and super-resolution fluorescence microscopy) used in biophysics and chemistry are presented in a very comprehensive manner, making them useful and accessible to both researchers in the field and novices studying cell membranes. This book provides readers a deeper understanding of the plasma membrane's organization at the single molecule level and opens a new way to reveal the relationship between the membrane's structure and functions, making it essential reading for researchers in various fields.

Electrochemistry - Volume 5 (Hardcover): H R Thirsk Electrochemistry - Volume 5 (Hardcover)
H R Thirsk
R11,149 Discovery Miles 111 490 Ships in 12 - 17 working days

Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued.

Physical Methods of Chemistry - Determination of Chemical Composit and Molecular Structure 2e V 3 Part A (Hardcover, 2nd... Physical Methods of Chemistry - Determination of Chemical Composit and Molecular Structure 2e V 3 Part A (Hardcover, 2nd Edition)
B.W. Rossiter
R15,964 Discovery Miles 159 640 Ships in 10 - 15 working days

This is the first of two volumes entitled Determination of Chemical Composition and Molecular Structure. The ordering offers more consistent volumes for those interested in certain types of chemical determinations as opposed to the grouping of similar techniques used for a variety of measurements. Chapters have been written by world-class authors who are widely recognized in their fields. Authors have directed their writings to the competent, professional scientist who is interested in obtaining information provided by the technique, but who is perhaps not an expert in the use of the method. In each case, authors of chapters have supplied, either in the text or through liberal reference to monographs and other scientific literature, sufficient information for the investigator to apply the techniques successfully in the laboratory.

Principles of Soft-Matter Dynamics - Basic Theories, Non-invasive Methods, Mesoscopic Aspects (Hardcover, 2012 ed.): Rainer... Principles of Soft-Matter Dynamics - Basic Theories, Non-invasive Methods, Mesoscopic Aspects (Hardcover, 2012 ed.)
Rainer Kimmich
R2,740 R1,756 Discovery Miles 17 560 Save R984 (36%) Ships in 12 - 17 working days

Practical applications of soft-matter dynamics are of vital importance in material science, chemical engineering, biophysics and biotechnology, food processing, plastic industry, micro- and nano-system technology, and other technologies based on non-crystalline and non-glassy materials.
"Principles of Soft-Matter Dynamics. Basic Theories, Non-invasive Methods, Mesoscopic Aspects" covers fundamental dynamic phenomena such as diffusion, relaxation, fluid dynamics, normal modes, order fluctuations, adsorption and wetting processes. It also elucidates the applications of the principles and of the methods referring to polymers, liquid crystals and other mesophases, membranes, amphiphilic systems, networks, and porous media including multiphase and multi-component materials, colloids, fine-particles, and emulsions. The book presents all formalisms, examines the basic concepts needed for applications of soft-matter science, and reviews non-invasive experimental techniques such as the multi-faceted realm of NMR methods, neutron and light quasi-elastic scattering, mechanical relaxation and dielectric broadband spectroscopy which are treated and compared on a common and consistent foundation. The standard concepts of dynamics in fluids, polymers, liquid crystals, colloids and adsorbates are comprehensively derived in a step-by-step manner. Principles and analogies common to diverse application fields are elucidated and theoretical and experimental aspects are supplemented by computational-physics considerations.
"Principles of Soft-Matter Dynamics. Basic Theories, Non-invasive Methods, Mesoscopic Aspects" appeals to graduate and PhD students, post-docs, researchers, and industrial scientists alike.

Phase-Transfer Catalysis - Fundamentals, Applications, and Industrial Perspectives (Hardcover, 1994 ed.): C.M. Starks, M. Halper Phase-Transfer Catalysis - Fundamentals, Applications, and Industrial Perspectives (Hardcover, 1994 ed.)
C.M. Starks, M. Halper
R8,409 R6,578 Discovery Miles 65 780 Save R1,831 (22%) Ships in 12 - 17 working days

This book is the definitive reference on phase-transfer catalysis (PTC), written by the three foremost industrial and academic PTC experts in the world. Phase-Transfer Catalysis, the first practical guide to performing PTC in industry, includes key information and analyses found in no other publication. It will be a valuable resource for synthetic organic chemists, polymer chemists, process chemists, developmental chemists, and chemical engineers in academia and industry. Organic process chemists seeking greater process flexibility, reduced manufacturing costs and pollution, and easier compliance with environmental regulations will find it an indispensable reference. The book provides a thorough introduction to the fundamentals of PTC as a synthetic organic chemistry technique, including reaction mechanisms, selectivity, rates, and kinetics. It gives specific guidelines on how to optimize catalyst, solvent, base, hydration, and more, based on reaction characteristics. The section on applications includes nucleophilic displacement reactions, oxidation and reduction reactions, and such special topics as insoluble PTC (triphase catalysis), polymerization, chiral catalysis, applications in environmental and analytical chemistry, and transition metal co-catalyzed PTC. Throughout the book, PTC applications in key industries are discussed - including organic chemicals, polymers, pharmaceuticals, agrichemicals, monomers, petrochemicals, flavors and fragrances, additives, dyes, and specialty chemicals.

Photochemistry and Photophysics of Coordination Compounds I (Hardcover, 2007 ed.): Vincenzo Balzani, Sebastiano Campagna Photochemistry and Photophysics of Coordination Compounds I (Hardcover, 2007 ed.)
Vincenzo Balzani, Sebastiano Campagna
R8,743 Discovery Miles 87 430 Ships in 10 - 15 working days

This book presents critical reviews of the current position and future trends in modern chemical research. It offers short and concise reports on chemistry, each written by world renowned experts.

Novel Macromolecules in Food Systems, Volume 41 (Hardcover): G. Doxastakis, V. Kiosseoglou Novel Macromolecules in Food Systems, Volume 41 (Hardcover)
G. Doxastakis, V. Kiosseoglou
R7,619 Discovery Miles 76 190 Ships in 10 - 15 working days

Applying recent advances in biological and physical sciences, food scientists have created "novel food ingredients" enzymatically, chemically or microbiologically. Chief among these are "novel proteins and polysaccharides" which, like the more established traditional macromolecules, can perform multifunctional roles such as thickening, stabilization, gelation or encapsulation and in this way determine to a large extent the shelf life, texture and nutritional value of natural and processed foods. Featuring the latest advances on chemistry, structure and functional properties of "novel proteins and polysaccharides," with an emphasis on fundamental structure-function relationships, this book will be valuable to all those working in product development and fundamental food research.

Chemicals from Synthesis Gas - Catalytic Reactions of CO and H2 (Hardcover, 1983 ed.): R.A. Sheldon Chemicals from Synthesis Gas - Catalytic Reactions of CO and H2 (Hardcover, 1983 ed.)
R.A. Sheldon
R4,715 Discovery Miles 47 150 Ships in 10 - 15 working days

The origins of the petrochemical industry can be traced back to the 1920s when simple organic chemicals such as ethanol and isopropanol were first prepared on an industrial scale from by-products (ethylene and propylene) of oil refining. This oil-based petrochemical industry, with lower olefms and aromatics as the key building blocks, rapidly developed into the enormous industry it is today. A multitude of products that are indispensible to modern day society, from plastics to pharmaceuticals, are derived from oil and natural gas-based hydro carbons. The industry had its heyday in the '50s and '60s when predictions of future growth rates tended to be exponential curves. However, two developments that took place in the early '70s disturbed this simplistic and optimistic view of the future. Firstly, the publication of the report for the Cub of Rome on the 'Limits to Growth' emphasized the finite nature of non-renewable fossil fuel resources. Secondly, the Oil Crisis of 1973 emphasized the vulnerability of an energy and chemicals industry that is based largely on a single raw material."

Testing Molecular Wires - A Photophysical and Quantum Chemical Assay (Hardcover, 2010 Ed.): Mateusz Wielopolski Testing Molecular Wires - A Photophysical and Quantum Chemical Assay (Hardcover, 2010 Ed.)
Mateusz Wielopolski
R1,607 Discovery Miles 16 070 Ships in 10 - 15 working days

One of the major challenges in current chemistry is to ?nd molecules able to move charges rapidly and ef?ciently from, for example, one terminus to another one under the control of an external electrical, electrochemical or photochemical stimulus. Nature has provided impressive examples of how these goals are achieved. The photosynthetic reaction center protein, for instance, rapidly moves electrons with near unity quantum ef?ciency across a lipid bilayer membrane using several redox cofactors, and thus, serves as a model for developing biomimetic analogues for applications in ?elds such as photovoltaic devices, molecular electronics and photonic materials. In this context, p-conjugated oligomeric molecular assemblies are of particular interest because they provide ef?cient electronic couplings between electroactive units - donor and acceptor termini - and display wire-like behavior. In order to make a molecule able to behave as an ideal molecular wire different requirements need to be ful?lled: i) matching between the donor (acceptor) and bridge energy levels, ii) a good electronic coupling between the electron donor and acceptor units via the bridge orbitals, and iii) a small attenuation factor. Among the many different p-conjugated oligomers, oligo(p-phenylenevin- enes) (oPPV), have emerged as a particularly promising model system that helps to comprehend/rationalize the basic features of polymeric poly(p-phenyle- vinylenes) and also as a versatile building block for novel materials with che- cally tailored properties.

Organotrifluoroborate Preparation, Coupling and Hydrolysis (Hardcover, 2013 ed.): Alastair J.J. Lennox Organotrifluoroborate Preparation, Coupling and Hydrolysis (Hardcover, 2013 ed.)
Alastair J.J. Lennox
R4,490 R3,614 Discovery Miles 36 140 Save R876 (20%) Ships in 12 - 17 working days

Alistair Lennox's thesis reports on the reactivity of organotrifluoroborates, which are becoming increasingly important reagents in synthesis. The thesis is divided into three sections. The first section describes a method for preparing organotrifluoroborates. The second section reports on a mechanistic investigation into the main application of RBF3K reagents as coupling partners in Suzuki-Miyaura coupling, phenomena identified as arising from organotrifluoroborate hydrolysis and fluoride release. The final section reports on a detailed investigation into the hydrolysis mechanism, a prerequisite for their Suzuki-Miyaura coupling, and how it may be predicted and controlled. This research has uncovered many interesting and useful details and shows how problems associated with Suzuki-Miyaura coupling can best be addressed. There has already been wide industrial uptake of the new procedures and insights. The broad nature and clear and succinct style will make the thesis a valuable resource for anyone working in synthesis, organometallic chemistry, or in homogeneous catalysis.

Advances in Lithium-Ion Batteries (Hardcover, 2002 ed.): Walter Van Schalkwijk, B. Scrosati Advances in Lithium-Ion Batteries (Hardcover, 2002 ed.)
Walter Van Schalkwijk, B. Scrosati
R6,327 Discovery Miles 63 270 Ships in 10 - 15 working days

In the decade since the introduction of the first commercial lithium-ion battery research and development on virtually every aspect of the chemistry and engineering of these systems has proceeded at unprecedented levels. This book is a snapshot of the state-of-the-art and where the work is going in the near future. The book is intended not only for researchers, but also for engineers and users of lithium-ion batteries which are found in virtually every type of portable electronic product.

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