With the present issue of Topics in Current Chemistry, the fourth and final volume concluding the mini-series on dendrimer chemistry has appeared. With a focus on the interdisciplinary bridges to neighboring fields, the contributions to this volume focus on coordination, catalysis and self-assembly, nicely balanced by a synthesis-based article on dendritic oligoethers.

Pincer complexes are formed by the binding of a chemical structure to a metal atom with at least one carbon-metal bond. Usually the metal atom has three bonds to a chemical backbone, enclosing the atom like a pincer. The resulting structure protects the metal atom and gives it unique properties.
The last decade has witnessed the continuous growth in the development of pincer complexes. These species have passed from being curiosity compounds to chemical chameleons able to perform a wide variety of applications. Their unique metal bound structures provide some of the most active catalysts yet known for organic transformations involving the activation of bonds. The Chemistry of Pincer Compounds details use of pincer compounds including homogeneous catalysis, enantioselective organic transformations, the activation of strong bonds, the biological importance of pincer compounds as potential therapeutic or pharmaceutical agents, dendrimeric and supported materials.
* Describes the chemistry and applications of this important class of organometallic and coordination compounds
* Covers the areas in which pincer complexes have had an impact
* Includes information on more recent and interesting pincer compounds not just those that are well-known

"N-Heterocyclic Carbenes in Transition Metal Catalysis and Organocatalysis" features all catalytic reactions enabled by N-heterocyclic carbenes (NHCs), either directly as organocatalysts or as ligands for transition metal catalysts. An explosion in the use of NHCs has been reported in the literature during the past seven years making this comprehensive overview highly apropos.

The book begins with an introductory overview of NHCs which could have been subtitled "all you need to know about NHCs." The main body of the book is dedicated to applications of NHCs in catalysis. In addition to the success stories of NHCs in metathesis, NHCs in cross coupling and more recently NHCs in organocatalysis, all other less publicized areas are also covered. As the success of NHCs is generally attributed to their potential to stabilize metal centres, the inclusion of a chapter on the decomposition of NHC catalysts is pertinent. The book closes with a chapter describing the applications of NHCs in industrial processes, which is the first coverage of its kind, and brings a unique industrial context to this book.

Included in this book: Historical aspects of NHCsSynthetic pathways to NHC precursors, free NHCs and complexesMethods of characterisation of NHCs and related complexesElectronic properties of NHCsSteric properties of NHCs and models for their descriptionNHCs for metathesis and cross-coupling reactionsNHCs as organocatalystsNHC Transition-Metal mediated oxidations, additions to multiple bonds, polymerisation and oligomerisation, cyclisations, direct arylations, reactions involving CO, C-F and C-H bond activation, ...Decomposition of NHC-containing catalystsIndustrial applications involving NHC-containing catalysts

"N-Heterocyclic Carbenes in Transition Metal Catalysis and Organocatalysis" provides a fresh view of NHCs since most contributors are young emerging researchers in the field of homogeneous catalysis using NHCs. This group of contributors is complemented by highly established academic researchers and an industrialist. This book is comprehensive, from the basic features of NHCs to the latest advances, hence it is suitable for both the novice and the expert.

This series presents critical reviews of the present position and future trends in modern chemical research. It contains short and concise reports on chemistry, each written by the world renowned experts - it is still valid and useful after 5 or 10 years. More information as well as the electronic version of the whole content available at: springerlink.com. The book will appeal to scientists and practitioners in the mentioned fields and in industry.

Organophosphorus Chemistry provides a comprehensive annual review of the literature. Coverage includes phosphines and their chalcogenides, phosphonium salts, low coordination number phosphorus compounds, penta- and hexa-coordinated compounds, tervalent phosphorus acids, nucleotides and nucleic acids, ylides and related compounds, and phosphazenes. The series will be of value to research workers in universities, government and industrial research organisations, whose work involves the use of organophosphorus compounds. It provides a concise but comprehensive survey of a vast field of study with a wide variety of applications, enabling the reader to rapidly keep abreast of the latest developments in their specialist areas. 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. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume.

This book covers fundamental principles and numerical methods relevant to the modeling of the injection molding process. As injection molding processing is related to rheology, mechanical and chemical engineering, polymer science and computational methods, and is a rapidly growing field, the book provides a multidisciplinary and comprehensive introduction to the subjects required for an understanding of the complex process. It addresses the up-to-date status of fundamental understanding and simulation technologies, without losing sight of still useful classical approaches. The main chapters of the book are devoted to the currently active fields of flow-induced crystallization and orientation evolution of fiber suspensions, respectively, followed by detailed discussion of their effects on mechanical property, shrinkage and warpage of injection-molded products. The level of the proposed book will be suitable for interested scientists, R&D engineers, application engineers, and graduate students in engineering.

Heterocyclicmoleculesplayasigni?cantroleinlifeprocessesandhaveplayed a major rolein industrial developments of the last century, for instance in the ?eld of dyes, pharmaceuticals, pesticides, polymers etc. They comprise not onlysomeofthemostinterestingandbiologicallyimportantnaturalproducts like alkaloids, carbohydrates, nucleic acids, and antibiotics but include many practical drugs and a large segment of known synthetic organic compounds. Hencescientistshavedevotedagreatamountofeffortto?ndoptimalsynthetic approachesto a variety ofheterocyclic compounds. Amongthemostsuccessfulandselectivesyntheticprocessesarecycload- tionreactions, since theyinvolvesimultaneous orsequential formationoftwo or more bonds often with a high degree of stereoselectivity and regiosel- tivity.Forinstance, 1,3 dipolar cycloadditions, whichare electronicallyequ- alent to Diels-Alder reactions, are among the most-common 5-membered ring-forming systems. In addition they usually proceed with a high degree of stereo-andregio-control.Itistherefore, notsurprising thatsynthesisofmany important classes ofheterocycles, including thoseof useful biologicallyactive molecules, have utilized cycloadditionsteps intheirformation.Furthermore, many heterocycles serve as intermediates in the synthesis of polyfunctional molecules. Volume I of "Synthesis of Heterocycles via Cycloadditions" featured ?ve chapters onthe followingtopics: - Isoxazolines fromNitroCompounds: Synthesis and Applications; - Cycloaddition Reactions of Azides Including Bioconjugation; - Enantioselective Cycloadditions ofAzomethine Ylides; - Heterocyclesby Cycloadditions of CarbonylYlides Generated fromDiazo Ketones; - HeterocyclesfromUnsaturated Phosphorus Ylides. In this volume we present four selected contributions by well-known authors, each an authority in his ?eld. The ?rst chapter is devoted to the use of oximes in cycloadditions which leads to formationof isoxazolines and isoxazolidines and from there to synthesis of macrolides like amphotericin and of other natural products and bioactive molecules. Furthermore, 4+2 cycloadditions of nitrosoalkenes are also included. This chapter complements the one in the X Preface previous volume which discussed access to isoxazolines via nitroalkanes.

Organoselenium Chemistry is a unique resource in this branch of organic/organometallic chemistry. The authors give an overview of synthesis strategies, introduce bioactive and environmentally friendly organoselenium compounds and discuss their applications from organic synthesis to the clinic.

The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field.

The book presents the current state of the art on phytocannnabinoid chemistry and pharmacology and will be of much use to those wishing to understand the current landscape of the exciting and intriguing phytocannabinoid science. The focus is on natural product cannabinoids which have been demonstrated to act at specific receptor targets in the CNS.

Exemplifying and illustrating recent exciting advances in PNA chemistry, the second edition of Peptide Nucleic Acids: Methods and Protocols serves as a vital complement to the first edition of the book. Since the discovery of peptide nucleic acids, many interesting new derivatives and analogues in terms of nucleic acid recognition specificity and affinity have emerged. Also, as this detailed volume presents, great ingenuity in exploiting the unique properties of PNAs for a wide variety of applications within drug discovery, medical diagnostics, chemical biology and nanotechnology has unfolded. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Peptide Nucleic Acids: Methods and Protocols, Second Edition serves as a source of useful specific methods and protocols as well as a source of inspiration for future developments.

Professionals in the field comprehensively summarize all the literature that pertains to known members of these classes of compounds. An extensive subject index and comprehensive tables of all recognized compounds permit easy location of data.

Palladium is a remarkable metal. In particular, organopalladium chemistry has made remarkable progress over the last 30 years. That progress is still continuing, without any end in sight. This book presents a number of accounts and reviews on the novel Pd-catalyzed reactions discovered mainly in the last five years. The book covers Pd-catalyzed reactions that are new entirely different from the more standard ones. Topics such as new reactions involving ss-carbon elimination and formation of palladacycles as key reactions, cross-coupling of unactivated alkyl electrophiles with organometallic compounds, arylation via C-H bond cleavage, Pd/norbornene-catalyzed aromatic functionalizations, three-component cyclizations of allenes, use of N-heterocyclic carbenes as ligands, asymmetric reactions catalyzed by Pd(II) compounds such as Lewis acids, cycloadditions of arynes and alkynes, and nucleophilic attack by Pd species are surveyed in detail by researchers who have made important contributions to these fields. The book addresses graduate students majoring in organic synthesis and researchers in academic and industrial institutes."

HighPerformance Polymers: Preparation and Polymerization of Macrocyclic Oligomers (D.J. Brunelle, T.L. Evans). Poly(Enaminonitriles) (J.A. Moore). Polymers for Electronic Applications: Cure Kinetics of Epoxy Cresol Novolac Encapsulant for Microelectronics Packaging (R.W. Biernath, D.S. Soane). Polypyrroles from Isoporous Alumina Membranes (R.P. Burford et al.). Nonlinear Optics: Nonlinear Optical Properties of New Dye Doped Photocrosslinkable Polymers (S. Tripathy et al.). NLO Device Structures from Polydiacetylenes (G.L. Baker). Polymers from Biological Sources: Genetic Engineering of Molecular and Supramolecular Structure in Polymers (D.A. Tirrell et al.). New Polymer Synthesis: Functionalized Polyolefins via Copolymerization of Borane Monomers in ZieglerNatta Process (T.C. Chung). 24 additional articles. Index.

1 N. Hadjichristidis, M. Pitsikalis, H. Iatrou: Synthesis of Block Copolymers.- 2 V. Abetz: Phase Behaviour and Morphologies of Block Copolymers.-

Exam Board: CCEA Level: A-level Subject: Chemistry First Teaching: September 2016 First Exam: June 2018 Reinforce students' understanding throughout their course; clear topic summaries with sample questions and answers will improve exam technique to achieve higher grades. Written by examiners and teachers, Student Guides: * Help students identify what they need to know with a concise summary of the topics examined in the AS and A-level specification * Consolidate understanding with exam tips and knowledge check questions * Provide opportunities to improve exam technique with sample graded answers to exam-style questions * Develop independent learning and research skills * Provide the content for generating individual revision notes

This volume explores the latest developments in the area of polymer electrolyte membranes (PEMs) used for high-temperature fuel cells. Featuring contributions from an international array of researchers, it presents a unified viewpoint on the operating principles of fuel cells, various methodologies used for the fabrication of PEMs, and issues related to the chemical and mechanical stabilities of the membranes. Special attention is given to the fabrication of electrospun nanocomposite membranes. The editors have consciously placed an emphasis on developments in the area of fast-growing and promising PEM materials obtained via hygroscopic inorganic fillers, solid proton conductors, heterocyclic solvents, ionic liquids, anhydrous H3PO4 blends, and heteropolyacids. This book is intended for fuel cell researchers and students who are interested in a deeper understanding of the organic-inorganic membranes used in fuel cells, membrane fabrication methodologies, properties and clean energy applications.

Topics in Current Chemistry volume 197, entitled Dendrimers, turned out to be so attractive to the readers that it was extremely successful and this encouraged us to continue.In addition, the first volume was exclusively dedic- ed to dendrimer chemistry, which covers only a small selection of the topics in this field. Moreover, the subject dendrimers has undergone a further upturn since the publication of the first volume.The present volume Dendrimers II by pioneers in this new research field deals with the aspects of dendrimers mentioned in the subtitle but also touches on areas beyond chemistry. What makes dendrimers so attractive that chemists have difficulty in avoiding them? Virtually every chemist can contribute to dendrimer chemistry, be it with a certain synthetic method which is also applicable to dendritic structures, be it with polymer chemical and analytical methods or supramolecular aspects such as host/guest interactions.Dendrimers have developed into an amalgam, into a market place of chemistry in which all the branches of chemistry organic, inorganic, physical-chemical, polymer-chemical or analytical chemistry have come together and stimulate each other.Dendrimers have become a molecular reaction vessel in the figurative sense. Similarly biological and material sciences benefit, for dendrimers have proved to be useful in diagnostics, as a component of thin layers, in catalysis as well as in nano sciences.This inter-disciplinary input has stimulated chemistry as a whole in that it has led to the development of optimized analytical devices."

This book offers a systematic compilation of the vast data available to synthetic chemists. It provides easy access to the necessary information required for chemical transformations.

Natural products present in the plant and animal kingdom offer a huge diversity of chemical structures which are the result of biosynthetic processes that have been modulated over the millennia through genetic effects. With the rapid developments in spectroscopic techniques and accompanying advances in high-throughput screening techniques, it has become possible to isolate, and then determine the structures and biological activity of natural products rapidly, thus opening up exciting new opportunities in the field of new drug development to the pharmaceutical industry. The series also covers the synthesis or testing and recording of the medicinal properties of natural products.

"There is a good mix of chemistry, structure elucidation, synthesis, and biology in the various chapters, thereby appealing to a diverse readership. The diagrams are clear and the writing excellent. In summary, this is another excellent volume in a very valuable series on natural products for which Professor Atta-ur-Rahman is to be congratulated...... an important and essential asset for those libraries supporting the efforts of natural product research groups."

Geoffrey A. Cordell, University of Illinois, Chicago, USA, "PHYTOCHEMISTRY," Vol.65, 2004
Describes the chemistry of bioactive natural productsContains contributions by leading authorities in the fieldA valuable resource for natural product and medicinal chemistry

The development of new high-tech applications and devices has created a seemingly insatiable demand for novel functional materials with enhanced and tailored properties. Such materials can be achieved by three-dimensional structuring on the nanoscale, giving rise to a significant enhancement of particular functional characteristics which stems from the ability to access both surface/interface and bulk properties. The highly ordered, bicontinuous double-gyroid morphology is a fascinating and particularly suitable 3D nanostructure for this purpose due to its highly accessible surface area, connectivity, narrow pore diameter distribution and superb structural stability. The presented study encompasses a wide range of modern nanotechnology techniques in a highly versatile bottom-up nanopatterning strategy that splits the fabrication process into two successive steps: the preparation of mesoporous double-gyroid templates utilizing diblock copolymer self-assembly, and their replication with a functional material employing electrochemical deposition and atomic layer deposition. The double-gyroid structured materials discussed include metals, metal oxides, and conjugated polymers, which are applied and characterized in high-performance devices, such as electrochromic displays, supercapacitors, chemical sensors and photovoltaics. This publication addresses a wide range of readers, from researchers and specialists who are professionally active in the field, to more general readers interested in chemistry, nanoscience and physics.

In this book, the author determines that a surface is itself a new material for chemical reaction, and the reaction of the surface provides additional new materials on that surface. The revelation of that peculiarity is what makes this book different from an ordinary textbook, and this new point of view will help to provide a new impetus when graduate students and researchers consider their results. The reaction of surface atoms provides additional new compounds, but these compounds cannot be detached from the surface. Some compounds are passive, but others work as catalysts. One superior feature of the surface is the dynamic cooperation of two or more different functional materials or sites on the same surface. This fact has been well established in the preferential oxidation of CO on platinum supported on a carbon nanotube with Ni-MgO at its terminal end. The Pt and Ni-MgO are perfectly separated, but these two are indispensable for the selective oxidation of CO in H2, where the H2O molecule plays a key role. The reader will understand that the complexity of catalysis is due to the complexity of the dynamic processes on the surface.

Crystal engineering is an interdisciplinary area that cuts across the traditional subdivisions of chemistry. Fuelled by our increasingly precise understanding of the chemistry and properties of supramolecular systems, interest in the potential of the field has increased rapidly. The topics discussed in the 28 contributions in this book provide a state-of-the-art description of the field and offer new research ideas that, if pursued, will serve to strengthen the field at the interface between supramolecular chemistry and materials science.