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New Developments In Molecular Chirality
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Book Synopsis New Developments in Molecular Chirality by : Paul G. Mezey
Download or read book New Developments in Molecular Chirality written by Paul G. Mezey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular chirality is one of the fundamental aspects of chemistry. Chirality properties of molecules have implications in a wide variety of subjects, ranging from the basic quantum mechanical properties of simple of a few atoms to molecular optical activity, asymmetric synthesis, systems and the folding pattern of proteins. Chirality, in both the geometrical and the topological sense, has also been the subject of investigations in various branches of mathematics. In particular, new developments in a branch of topology, called knot theory, as well as in various branches of discrete mathematics, have led to a novel perspective on the topological aspects of molecular chirality. Some of the mathematical advances have already found applications to the interpretation of new concepts in theoretical chemistry and mathematical chemistry, as well as to novel synthetic approaches leading to new molecules of exceptional structural properties. Some of the new developments in molecular chirality have been truly fundamental to the theoretical understanding and to the actual practice of many aspects of chemistry. The progress in this field has been very rapid, even accelerating in recent years, and a review appears more than justified. This book offers a selection of subjects covering some of the latest developments. Our primary aim is to clarify some of the basic concepts that are the most prone to misinterpretation and to provide brief introductions to some of those subjects that are expected to have further, important contributions to our understanding of molecular properties and chemical reactivity.
Book Synopsis Molecular Optical Activity and the Chiral Discriminations by : Stephen F. Mason
Download or read book Molecular Optical Activity and the Chiral Discriminations written by Stephen F. Mason and published by Cambridge University Press. This book was released on 1982-10-14 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Book Synopsis Chirality in Industry II by : A. N. Collins
Download or read book Chirality in Industry II written by A. N. Collins and published by John Wiley & Sons. This book was released on 1998-02-04 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume of Chirality in Industry contains new case histories from a wide range of contributors from industry or with strong industrial connections. While it is intended that the new volume will stand on its own, Volumes I and II taken together present an up-to-date and comprehensive picture of the technologies required to produce optically active compounds on a multi-kilogramme to high tonnage scale as well as illustrating the breadth of application of these technologies; the pharmaceuticals, agrochemicals, electronics, food, flavour and fragrance industries are all represented. Chirality in Industry II All new case histories Unique industrial perspective on chiral technology Emphasis on scale-up and process development Comparison of biocatalysis, asymmetric synthesis and classical resolution approaches The chiral infrastructure is now largely in place and there is no reason why large-scale production should not be possible for even moderately priced single enantiomer products. The successful industrial application of chiral chemistry depends on the integration of a range of supporting technologies and there are many examples in this volume of how widely the industrial practitioner must cast the net to achieve practical production methods. As with Volume I, this new volume is of particular interest to those professionally involved in the scale-up processes for single enantiomers. However, students and researchers involved in a more academic pursuit of optical activity will also benefit from some of the facets of large-scale thinking. An economic solution is still most likely to be a simple, elegant solution.
Book Synopsis Advances in Asymmetric Autocatalysis and Related Topics by : Gyula Palyi
Download or read book Advances in Asymmetric Autocatalysis and Related Topics written by Gyula Palyi and published by Academic Press. This book was released on 2017-05-18 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Asymmetric Autocatalysis and Related Topics provides various viewpoints on the important developments in asymmetric autocatalysis that have occurred in the past few years, also including brand new information in the field. Asymmetric autocatalysis is a chemical reaction which leads from achiral starting materials to chiral products, and in which the product accelerates its own formation reaction (conventional catalysis) and promotes the prevalence of its own chiral configuration (asymmetric induction). The combination of these two effects in the same reaction was unprecedented before 1995 when it was first described by Kenso SOAI at the Tokyo University of Science. Since then, several new combinations of this effect have been found, most intriguingly the possibility of absolute asymmetric synthesis, which is the spontaneous formation of the excess of one of the enantiomers of the product, a dream of organic chemists for more than a century. The book contains expert-contributed chapters that describe the most exciting recent developments in the field of the Soai reaction and in related topics, ranging from mechanistic studies and theoretical research, to very practical problems in chiral syntheses and products. Features contributions from global experts, including several chapters from Kenso Soai and expert colleagues Focuses on recent developments in the field of asymmetric autocatalysis and newly reported findings Explores the Soai reaction, new developments, and the light it sheds on homochirality in certain biomolecules
Book Synopsis Advances in BioChirality by : C. Zucchi
Download or read book Advances in BioChirality written by C. Zucchi and published by Elsevier. This book was released on 1999-09-08 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chirality is a fundamental, persistent, but often overlooked feature of all living organisms on the molecular level as well as on the macroscopic scale. The high degree of preference for only one of two possible mirror image forms in Nature, often called biological homochirality is a puzzling, and not yet fully understood, phenomenon. This book covers biological homochirality from an interdisciplinary approach - contributions range from synthetic chemists, theoretical topologists and physicists, from palaeontologists and biologists to space scientists and representatives of the pharmaceutical and materials industries. Topics covered include - theory of biochirality, origins of biochirality, autocatalysis with amplification of chirality, macroscopic (present) biochirality, fossil records of chiral organisms - paleochirality, extraterrestrial origin of chirality, exceptions to the rule of biological homochirality, D-amino acids, chemical transfer of chirality, PV effects, and polarised radiation chemistry.
Book Synopsis Biological Chirality by : Gyula Palyi
Download or read book Biological Chirality written by Gyula Palyi and published by Academic Press. This book was released on 2019-11-06 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological Chirality describes this occurrence, its history, and early research around the topic. The work covers analytical methods for observing the phenomenon, providing current techniques and practice and discussing the asymmetric morphology of certain living organisms, such as the position of the heart and liver in humans and the exceptions to biological homochirality seen in D-Amino Acids. In addition, it explores the requirement of enantioselectivity prepared pharmaceuticals to address enantioselectivities biomolecules, a major challenge in today's organic chemistry. Finally, the work considers the possible origin of biological homochirality, as well as the outlook for future research in this area. Describes the history of biological chirality research, its possible origins, and future exploration areas Discusses asymmetric exceptions in morphology and D-Amino Acids Explores the critical implications of enantioselective biomolecules for preparative organic chemistry with a goal of developing effective pharmaceuticals
Book Synopsis The New Avenues in Bioinformatics by : Joseph Seckbach
Download or read book The New Avenues in Bioinformatics written by Joseph Seckbach and published by Springer Science & Business Media. This book was released on 2007-11-12 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioinformatics has ignited the imagination of scientists, entrepreneurs and the general public. At the meeting place of two fast growth disciplines, biology and computer science Bioinformatics is one of the cornerstones of the new biology. It is clearly pivotal to the translation of high throughput projects such the human genome project into useful knowledge. Yet despite all this attention, there is no consensus on what exactly is Bioinformatics. There are several canonical topics, such as gene structure prediction, protein functional classification or structure prediction. The present book explores new frontiers in bioinformatics, such as Glycomics or the computational modeling of genetic processes. We also discuss confounding factors that we find crucial to the development of the field, such as the ability to protect and restrict intellectual property in the field, or the challenges involved in educating bioinformatics users. Finally, we touch upon some fundamental questions, such as what information is and how it is captured in biological systems. By bringing to the readers such a broad spectrum of reviews, we hope to capture the vibrant spirit of this young science and to truly represent the fast pace with which it is still developing.
Book Synopsis New Trends in Kramers’ Reaction Rate Theory by : P. Talkner
Download or read book New Trends in Kramers’ Reaction Rate Theory written by P. Talkner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The escape from metastable states via noise-assisted hopping and/or tunneling is pivotal to many scientific disciplines. It impacts on such diverse physical, chemical and biological processes as diffusion in solids, chemical reactions, nucleation phenomena and transfer of matter and information in biological systems. This volume surveys recent developments in the rate theory of both equilibrium and nonequilibrium processes. The understanding of the classical and quantum-mechanical concepts of this theory is deepened and extended in order to cope with various problems which, in particular, arise in complex systems. A wide range of applications are discussed such as correlated hops in periodic potentials, fluctuating barriers, transitions to limit cycles, discrete time dynamics, random walks on selfsimilar structures, and nonexponential decay in disordered systems is covered and profoundly discussed. For research workers and graduate students in chemistry, physics and biology with an interest in reaction rate theory.
Download or read book Chemical Topology written by D Bonchev and published by CRC Press. This book was released on 1999-04-23 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topology is becoming increasingly important in chemistry because of its rapidly growing number of applications. Here, its many uses are reviewed and the authors anticipate what future developments might bring. This work shows how significant new insights can be gained by representing molecular species as topological structures known as topographs. The text explores carbon structures, establishing how the stability of fullerene species can be accounted for and also predicting which fullerenes will be most stable. It is pointed out that molecular topology, rather than molecular geometry, characterizes molecular shape and various tools for shape characterization are described. Several of the fascinating ideas that arise from regarding topology as a unifying principle in chemical bonding theory are discussed, and in particular, the novel concept of the molecular topoid is shown to have numerous uses. The topological description of polymers is examined and the reader is gently guided through the realms of branched and tangled polymers. Overall, this work outlines the fact that topology is not only a theoretical discipline but also one that has practical applications and high relevance to the whole domain of chemistry.
Book Synopsis Chemical Topology by : Danail Bonchev
Download or read book Chemical Topology written by Danail Bonchev and published by CRC Press. This book was released on 2000-07-06 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topology has been extensively applied in the study of chemically linked and knotted structures, and also in the study of many biologically significant molecules such as proteins and DNA. These are the themes that are addressed in this volume of the Mathematical Chemistry series. The topological chirality of knotted and linked molecular species and the invariants that may characterize them are explored in detail.
Book Synopsis Chemical Evolution: Origin Of Life by : Julian Chela-Flores, PhD
Download or read book Chemical Evolution: Origin Of Life written by Julian Chela-Flores, PhD and published by A. Deepak Publishing. This book was released on 1992-12-31 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses some important open questions in this interdisciplinary field of research. In spite of its broad scope, ranging from the earliest evidence of life on earth to the search for extraterrestrial intelligence, the main focus is on chemical evolution. Once the macromolecules of life were formed, the evolution of the earliest life forms enhanced the importance of chirality. This led to the highly asymmetric environment of the macromolecules of the living cell the hallmark of life itself. The subject of chirality, in particular, is discussed in depth: the status of the weak force as the only true chiral influence is presented. A substantial number of papers review both the theoretical as well as the experimental basis of the origin of biochirality. A second broad area discussed in detail is the RNA world. Some successes of this hypothesis are highlighted; the hierarchy of previous evolutionary stages leading to the origin of life, such as the pyrophosphate world, are considered. The question is raised whether useful hints may still be inferred from molecular fossils existing in contemporary cells. Contents The Origin, Evolution, and Distribution of Life in the Universe C. Ponnamperuma Chemical Origin and Early Evolution of Biological Energy Conversion H. Baltscheffsky Phosphate in Models for Chemical Evolution G. Arrhenius, B. Gedulin and Mojzsis Evolution in an RNA World P. Schuster Small Pathogenic RNAs of Plants: Living Fossils of the RNA World? T.O. Diener The Weak Force and the Origin of Life A.J. MacDermott The Origin of Chirality, the Role of Phase Transitions and Their Induction in Amino Acids A. Salam Spontaneous Regulating Mechanisms That May Have Led to the Origin of Life J. Chela-Flores Chirality and the Origin of Life R. Navarro Gonzalez, R.K. Khanna and C. Ponnamperuma >Search for Phase Transitions Changing Molecular Chirality A. Figureau, E. Duval and A. Boukenter Theoretical and Experimental Studies on the Possibility of Chirality Dependent Time Direction in Molecules A.S. Garay Extraterrestrial Intelligences J. Heidmann Discussion Sessions Biochemical Markers in Precambian Sediments--Indian Subcontinent S.S. Rane, A.V. Patankar, M.S. Chadha, B. Udayraj and S.M. Naqvi Practicabilities and Limits of Stereospecific Autocatalysis: An Experimental Approach T. Buhse, W. Thiemann, D. Lavabre and J.-C. Micheau Ionizing Radiation and Chemical Processing of Waters on Early Earth I.G. Draganic and S.I. Vujosevic Chemical Effects of Ionizing Radiation and Sonic Energy in the Context of Chemical Evolution A. Negron-Mendoza and G. Albarran Differences in Radiolysis Behavior of D,L-Amino Acid in Primary Stage and Thermodynamic Equilibrium State W.Q. Wang, J.L. Wu and J. Jiang Experimental Searches for the Origin of Biomolecular Asymmetry L. Keszthelyi True and False Chirality L.D. Barron Chiral Interaction and Biomolecular Evolution G. Gilat Chiral Forces and Molecular Dissymmetry R. Mohan Viroids and Viruses at the Origin of Organized Life L.J. Boya and P. Boya The Role of Neoteny and Sociogenesis in the Evolution of Cell Structure V.J.A. Novak
Book Synopsis The Origin of Chirality in the Molecules of Life (2nd Edition) by : Albert Guijarro
Download or read book The Origin of Chirality in the Molecules of Life (2nd Edition) written by Albert Guijarro and published by Royal Society of Chemistry. This book was released on 2022-06-10 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an interdisciplinary review of one of the great unsolved mysteries that has fascinated scientists for over 150 years: the origin of chirality in biomolecules. It is fundamental, comprehensive and structured to be accessible for educational purposes.
Book Synopsis Knots and Applications by : Louis H. Kauffman
Download or read book Knots and Applications written by Louis H. Kauffman and published by World Scientific. This book was released on 1995 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a collection of research papers devoted to the study of relationships between knot theory and the foundations of mathematics, physics, chemistry, biology and psychology. Included are reprints of the work of Lord Kelvin (Sir William Thomson) on the 19th century theory of vortex atoms, reprints of modern papers on knotted flux in physics and in fluid dynamics and knotted wormholes in general relativity. It also includes papers on Witten's approach to knots via quantum field theory and applications of this approach to quantum gravity and the Ising model in three dimensions. Other papers discuss the topology of RNA folding in relation to invariants of graphs and Vassiliev invariants, the entanglement structures of polymers, the synthesis of molecular Mobius strips and knotted molecules. The book begins with an article on the applications of knot theory to the foundations of mathematics and ends with an article on topology and visual perception. This volume will be of immense interest to all workers interested in new possibilities in the uses of knots and knot theory.
Book Synopsis Symmetry And Structural Properties Of Condensed Matter - Proceedings Of The 5th International School On Theoretical Physics by : Tadeusz Lulek
Download or read book Symmetry And Structural Properties Of Condensed Matter - Proceedings Of The 5th International School On Theoretical Physics written by Tadeusz Lulek and published by World Scientific. This book was released on 1999-10-15 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume continues the series of proceedings of summer schools on theoretical physics which aim at an adequate description of the structure of condensed matter in terms of sophisticated, advanced mathematical tools. This time, the main emphasis is put on the question of whether (and when) the energy bands in solids are continuous. Profs. L Michel, J Zak and others consider the origin, existence and continuity of band structure. Also, some previously discussed problems (magnetic symmetry, flux quantization, statistics, quasicrystals, the Bethe ansatz) are pursued further, and appropriate mathematical tools, rooted in “actions of groups on sets”, are developed.
Book Synopsis What is What in the Nanoworld by : Victor E. Borisenko
Download or read book What is What in the Nanoworld written by Victor E. Borisenko and published by John Wiley & Sons. This book was released on 2013-02-21 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third, partly revised and enlarged edition of this introductory reference summarizes the terms and definitions, most important phenomena, and regulations occurring in the physics, chemistry, technology, and application of nanostructures. A representative collection of fundamental terms and definitions from quantum physics and chemistry, special mathematics, organic and inorganic chemistry, solid state physics, material science and technology accompanies recommended secondary sources for an extended study of any given subject. Each of the more than 2,200 entries, from a few sentences to a page in length, interprets the term or definition in question and briefly presents the main features of the phenomena behind it. Additional information in the form of notes ("First described in", "Recognition", "More details in") supplements the entries and gives a historical perspective of the subject with reference to further sources. Ideal for answering questions related to unknown terms and definitions among undergraduate and PhD students studying the physics of low-dimensional structures, nanoelectronics, and nanotechnology.
Book Synopsis Asymmetric Synthesis with Chemical and Biological Methods by : Dieter Enders
Download or read book Asymmetric Synthesis with Chemical and Biological Methods written by Dieter Enders and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by two of the leading researchers in the field, this book provides a deep, interdisciplinary insight into stoichiometric and catalytic reactions in this continuously expanding area. A plethora of top German scientists with an international reputation covers various aspects, from classical organic chemistry to process development, and from the theoretical background to biological methods using enzymes. Throughout the focus is on the development of new synthetic methods in asymmetric synthesis, the synthesis of natural and bioactive compounds and the latest developments in both chemical and biological methods of catalysis, as well as the investigation of special technical and biotechnical aspects.
Book Synopsis The Nature of the Mechanical Bond by : Carson J. Bruns
Download or read book The Nature of the Mechanical Bond written by Carson J. Bruns and published by John Wiley & Sons. This book was released on 2016-11-07 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The story is told by THE inventor-pioneer-master in the field and is accompanied by amazing illustrations… [it] will become an absolute reference and a best seller in chemistry!” Alberto Credi “… the great opus on the mechanical bond. A most impressive undertaking!” Jean-Marie Lehn Congratulations to co-author J. Fraser Stoddart, a 2016 Nobel Laureate in Chemistry. In molecules, the mechanical bond is not shared between atoms—it is a bond that arises when molecular entities become entangled in space. Just as supermolecules are held together by supramolecular interactions, mechanomolecules, such as catenanes and rotaxanes, are maintained by mechanical bonds. This emergent bond endows mechanomolecules with a whole suite of novel properties relating to both form and function. They hold unlimited promise for countless applications, ranging from their presence in molecular devices and electronics to their involvement in remarkably advanced functional materials. The Nature of the Mechanical Bond is a comprehensive review of much of the contemporary literature on the mechanical bond, accessible to newcomers and veterans alike. Topics covered include: Supramolecular, covalent, and statistical approaches to the formation of entanglements that underpin mechanical bonds in molecules and macromolecules Kinetically and thermodynamically controlled strategies for synthesizing mechanomolecules Chemical topology, molecular architectures, polymers, crystals, and materials with mechanical bonds The stereochemistry of the mechanical bond (mechanostereochemistry), including the novel types of dynamic and static isomerism and chirality that emerge in mechanomolecules Artificial molecular switches and machines based on the large-amplitude translational and rotational motions expressed by suitably designed catenanes and rotaxanes. This contemporary and highly interdisciplinary field is summarized in a visually appealing, image-driven format, with more than 800 illustrations covering both fundamental and applied research. The Nature of the Mechanical Bond is a must-read for everyone, from students to experienced researchers, with an interest in chemistry’s latest and most non-canonical bond. Read the Preface
