الصفحة 1
الصفحة 1
Metal-Catalysed Reactions of Hydrocarbons
This unique book, drawing on the author’s lifetime experience, critically evaluates the extensive literature on the field of Metal-Catalysed Reactions of Hydrocarbons. Emphasis is placed on reaction mechanisms involving hydrogenation, hydrogenolysis, skeletal and positional isomerisation, and exchange reactions. The motivation for fundamental research in heterogeneous catalysis is to identify the physicochemical characteristics of active centres for the reaction being studied, to learn how these may be modified or manipulated to improve the desired behavior of the catalyst, and to recognize and control those aspects of the catalyst's structure that limit its overall performance. By restricting the subject of the book to hydrocarbons, Bond has progressively developed the subject matter to include areas of importance both to researchers and to those working in the industry.
Energy dissipation in molecular systems
Energy Dissipation in Molecular Systems analyzes experimental data on the redistribution and dissipation of energy injected into molecular systems by radiation or charged particles. These processes, competing with such practically important relaxation channels as chemical reaction or stimulated emission (laser action), are the primary focus in this monograph. Among other topics, the book treats vibrational redistribution and electronic relaxation in isolated molecules and the effects of inter-molecular interactions (collisions, complex formation, solvent effects) on the relaxation paths. Primary photo-chemical processes (such as isomerization, proton or hydrogen-atom transfer, electron transfer and ionization) are also treated as particular cases of vibrational or electronic relaxation. Only a basic knowledge of quantum mechanics and spectroscopy is assumed and calculations are kept to a strict minimum, making the book more accessible to students.
Drug Targets in Kinetoplastid Parasites
The book contains 12 chapters contributed by eminent scientists working in this field. The articles deal mainly with two aspects: visual identification of targets and identification of therapeutic agents.Several targets like kDNA replication machinery, purine salvage pathway, purine and pyrimidine biosynthetic pathway, histone deacetylase, DNA topoisomerases, membrane transporter proteins, glycoproteins and glycolipids are discussed in this book. Since current treatments for kinetoplastid parasitic diseases are far from ideal, there is an urgent and genuine need to develop newer compounds as antiparasitic drug candidates. Therefore evelopment of some lead compounds against these parasites as well as drug resistance are also included in this book. Moreover the vast amount of information generated after publication of the "Trytrip" genome sequence now makes possible several new approaches for target identification and discovery of therapeutic agents. This book is an outcome of the contributions of many scientists working in this important area.
DNA Binders and Related Subjects
advances in technology and the application of new methods to outstanding problems have played a major part in the development of ideas about drug-nucleic acid recognition. The field has undergone an explosive diversification as wider and wider problems became accessible to study using the new ideas and techniques. This volume reflects that diversification by offering accounts of selected areas that illustrate recent advances in the study of ligand–nucleic acid binding over disparate areas of the subject. There are chapters dealing specifically with the invention and application of new methodology, and a particularly thoughtful essay on the interpretation of X-ray diffraction data which may not be as straightforward as is often imagined. Other chapters illustrate the diversity and complexity of drug-DNA binding from several perspectives, referring to particular groups of related compounds or the potential attractions of the less-preferred DNA major groove as a target for nucleotide sequence recognition by ligands.
Chemistry from First Principles
This book examines the appearance of matter in its most primitive form, from the vacuum and the diversity that results from the fusion of elementary units in the genesis of atomic matter; considers the empirical rules of chemical affinity that regulate the synthesis and properties of molecular matter; analyzes the compatibility of the theories of chemistry with the quantum and relativity theories of physics; formulates a consistent theory, based on clear physical pictures and manageable mathematics, to account for chemical concepts such as the structure and stability of atoms and molecules, the periodicity of nuclides and elements, valence states, activation and chemical reactivity, electronegativity and general covalency, the exclusion principle, electronic energy, orbital angular momentum and spin in relation to molecular shape, torsional rigidity, chirality and molecular modeling; explains the self-similarity between space-time, nuclear structure, covalent assembly, biological growth, planetary systems and galactic conformation.
Carotenoids ; Vol.4 : Natural Functions
The Carotenoids book series provides detailed accounts of the fundamental chemistry of carotenoids and the basic methods used in carotenoid research, and critical discussions of the biochemistry, functions and applications of these important compounds. Volume 4 and its companion, Volume 5, deal with the functions of carotenoids in all kinds of living organisms and the actions of carotenoids in human nutrition and health. The material presented in the earlier Volumes is all relevant to studies of biological functions and actions. In particular, biological studies must be supported by a rigorous analytical base. The various analytical procedures described in Volumes 1A and 1B, supplemented by the data for individual compounds given in the Carotenoids Handbook, must be understood and applied correctly, whether they are being used for quantitative analysis, identification or in complex studies of carotenoids in situ.
Biomacromolecules : Carbohydrates, lipids, proteins and nucleic acids
The first chapter looks at the structural formulas and cyclic forms of monosaccharides, as well as their synthesis and breakdown. Cyclization, enolization, isomerization, tautomerization, mutarotation, and epimerization are all briefly described. Examples of disaccharides and polysaccharides are also presented. The second chapter covers triglycerides, steroids, vitamins, and their constituents. The third chapter examines the primary structure of proteins, including amino acid properties, peptide bond formation, and peptide synthesis. It also addresses secondary, tertiary, and quaternary structures. The book concludes with a chapter on nucleic acids, which covers the chemistry of nucleosides and oligonucleotides as well as topics such as genetic code, DNA secret code, Polymerase Chain Reaction and DNA fingerprinting.
Bioactive Heterocycles IV
This volume contains nine more contributions from expert researchers of the?eld, providing readers with in depth and current research results regarding therespective topics. In the?rst chapter, Flemming et al. review the chemistry, biosynthesis, metabolism and biological activities of tetrahydrocannabinol and its deri- tives. Hansch and Verma contribute to the quantitative structure-activity re- tionship (QSAR) analysis of heterocyclic topoisomerase I and II inhibitors. These inhibitors, knowntoinhibit either enzyme, actasantitumoragentsand are currently used in chemotherapy and in clinicaltrials. In the third chapter, Khan reviews some aspects of molecular modeling studies on biologically active alkaloids.
