Download or read book Electron Deficient Compounds written by K. Wade and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about compounds such as the boron hydrides and associated metal hydrides and alkyls which acquired the label 'electron deficient' when they were thought to contain too few valence electrons to hold together. Though they are now recognized as containing the numbers of bonding electrons appropriate for their structures, the term 'electron deficient' is still commonly applied to many substances that contain too few valence electrons to provide a pair for every pair of atoms close enough to be regarded as covalently bonded. The study of such substances has contributed much to chemistry. Techniques for the vacuum manipulation of volatile substances were devised specifically for their study; developments in valence theory resulted from considerations of their bonding; and the reactivity of several (for example, diborane and complex metal hydrides, lithium and aluminium alkyls) has made them valuable reagents. The purpose of this book is to provide an introduction to the chemistry of these fascinating compounds. The experimental and spectroscopic methods by which they can be studied are outlined, the various types of structure they adopt are described and profusely illustrated, and the relative merits of extended valence bond and simple molecular orbital treatments of their bonding are discussed, with as liberal use of diagrams and as limited recourse to the Greek alphabet as possible. A recurring theme is the importance attached to considerations of molecular sym metry. Their reactions are treated in sufficient detail to show whether these reflect any deficiency of electrons.

Download or read book Electron Deficient Compounds written by Kenneth Wade and published by . This book was released on 1971 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electron Deficient Compounds written by K. Wade and published by . This book was released on 1971-01-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemistry written by Bruce A. Averill and published by Prentice Hall. This book was released on 2006-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Chemistry: Principles, Patterns, and Applications" represents the next step in general chemistry texts, with an emphasis on contemporary applications and an intuitive problem-solving approach that helps readers discover the exciting potential of chemical science. The book features modern applications, early integration of examples from organic and biochemistry, and a strong approach to problem solving that moves away from rote memorization to a thorough understanding of key concepts and recognition of important patterns. The worked examples throughout each chapter show readers how to develop strategies and thought processes that will enable them to solve problems both quantitatively and conceptually. Kinetics and Equilibria, Chemical Kinetics, Chemical Equilibrium, Aqueous Acid-Base Equilibria, Solubility Equilibria, Chemical Thermodynamics, Electrochemistry, Nuclear Chemistry, Chemistry of the Elements, General Trends and the "s"-Block Elements, The "p"-Block Elements, The "d"- and "f"-Block Elements, Organic Compounds. For all readers interested in a general chemistry text with an emphasis on contemporary applications and an intuitive problem-solving approach.

Download or read book Electron Deficient Compounds written by R. E. Rundle and published by . This book was released on 1950 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electron Deficient Compounds written by Paul H. Lewis and published by . This book was released on 1952 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Electronic Theory of Valency written by Nevil Vincent Sidgwick and published by . This book was released on 1927 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Valency and Molecular Structure written by E. Cartmell and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Valency and Molecular Structure, Fourth Edition provides a comprehensive historical background and experimental foundations of theories and methods relating to valency and molecular structures. In this edition, the chapter on Bohr theory has been removed while some sections, such as structures of crystalline solids, have been expanded. Details of structures have also been revised and extended using the best available values for bond lengths and bond angles. Recent developments are mostly noted in the chapter on complex compounds, while a new chapter has been added to serve as an introduction to the spectroscopy of complex compounds. Other topics include the experimental foundation of the quantum theory; molecular-orbital method; ionic, hydrogen, and metallic bonds; structures of some simple inorganic compounds; and electronic spectra of transition-metal complexes. This publication is a useful reference for undergraduate students majoring in chemistry and other affiliated science subjects.

Download or read book A Textbook of Inorganic Chemistry Volume 1 written by Mandeep Dalal and published by Dalal Institute. This book was released on 2017-01-01 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: An advanced-level textbook of inorganic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of four volume series, entitled "A Textbook of Inorganic Chemistry – Volume I, II, III, IV". CONTENTS: Chapter 1. Stereochemistry and Bonding in Main Group Compounds: VSEPR theory, dπ -pπ bonds, Bent rule and energetic of hybridization. Chapter 2. Metal-Ligand Equilibria in Solution: Stepwise and overall formation constants and their interactions, Trends in stepwise constants, Factors affecting stability of metal complexes with reference to the nature of metal ion and ligand, Chelate effect and its thermodynamic origin, Determination of binary formation constants by pH-metry and spectrophotometry. Chapter 3. Reaction Mechanism of Transition Metal Complexes – I: Inert and labile complexes, Mechanisms for ligand replacement reactions, Formation of complexes from aquo ions, Ligand displacement reactions in octahedral complexes- acid hydrolysis, Base hydrolysis, Racemization of tris chelate complexes, Electrophilic attack on ligands. Chapter 4. Reaction Mechanism of Transition Metal Complexes – II: Mechanism of ligand displacement reactions in square planar complexes, The trans effect, Theories of trans effect, Mechanism of electron transfer reactions – types; Outer sphere electron transfer mechanism and inner sphere electron transfer mechanism, Electron exchange. Chapter 5. Isopoly and Heteropoly Acids and Salts: Isopoly and Heteropoly acids and salts of Mo and W: structures of isopoly and heteropoly anions. Chapter 6. Crystal Structures: Structures of some binary and ternary compounds such as fluorite, antifluorite, rutile, antirutile, crystobalite, layer lattices- CdI2, BiI3; ReO3, Mn2O3, corundum, pervoskite, Ilmenite and Calcite. Chapter 7. Metal-Ligand Bonding: Limitation of crystal field theory, Molecular orbital theory, octahedral, tetrahedral or square planar complexes, π-bonding and molecular orbital theory. Chapter 8. Electronic Spectra of Transition Metal Complexes: Spectroscopic ground states, Correlation and spin-orbit coupling in free ions for Ist series of transition metals, Orgel and Tanabe-Sugano diagrams for transition metal complexes (d1 – d9 states), Calculation of Dq, B and β parameters, Effect of distortion on the d-orbital energy levels, Structural evidence from electronic spectrum, John-Tellar effect, Spectrochemical and nephalauxetic series, Charge transfer spectra, Electronic spectra of molecular addition compounds. Chapter 9. Magantic Properties of Transition Metal Complexes: Elementary theory of magneto - chemistry, Guoy’s method for determination of magnetic susceptibility, Calculation of magnetic moments, Magnetic properties of free ions, Orbital contribution, effect of ligand-field, Application of magneto-chemistry in structure determination, Magnetic exchange coupling and spin state cross over. Chapter 10. Metal Clusters: Structure and bonding in higher boranes, Wade’s rules, Carboranes, Metal Carbonyl Clusters - Low Nuclearity Carbonyl Clusters, Total Electron Count (TEC). Chapter 11. Metal-π Complexes: Metal carbonyls, structure and bonding, Vibrational spectra of metal carbonyls for bonding and structure elucidation, Important reactions of metal carbonyls; Preparation, bonding, structure and important reactions of transition metal nitrosyl, dinitrogen and dioxygen complexes; Tertiary phosphine as ligand.

Download or read book Hydrides of Boron and Silicon written by Alfred Stock and published by . This book was released on 1957 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electron Deficient Boron and Carbon Clusters written by George Andrew Olah and published by Wiley-Interscience. This book was released on 1991-02-07 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compares and contrasts the structure and chemistry of boron clusters, carbon clusters, and carboranes and their derivatives. Honors the pioneering works of William Lipscomb.

Download or read book New Frontiers in Organoselenium Compounds written by Eder João Lenardão and published by Springer. This book was released on 2018-06-29 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances in and perspectives on the use of organoselenium compounds, primarily highlighting the new frontiers in the field of Green Chemistry, their therapeutic and biological relevance and new materials. Throughout its 200 pages, readers will find an updated and comprehensive review of new aspects of organoselenium chemistry and biochemistry. Fully referenced and written in an easy to read style, it offers readers a primary resource for including organoselenium derivatives in their projects. This book will be of interest to specialists, students and researchers involved in a broad range of fields, from synthetic green chemistry to medicinal chemistry and the chemistry of natural products. The connection between organoselenium compounds and green chemistry, despite having only recently emerged, is one of the subjects of this book. The first chapter highlights the use of Se-containing molecules as reagents and catalysts in new green protocols to access important organic transformations. The book provides a wealth of examples of bioactive Se-containing molecules, especially focusing on those with potential therapeutic uses. The second chapter focuses on the state of the art concerning the role of organoselenium compounds as antioxidants, GPx mimics, and derivatives endowed with different bioactive properties. “Organoselenium in nature” is the title of the third chapter, which equips readers with essential information on the main natural organoselenium compounds and where they are found. Selected aspects of the metabolism of selenium in plants and microorganisms are also discussed. In closing, the book includes a chapter dedicated to recent advances concerning the nonbonding interactions between organochalcogen compounds. This is currently a hot topic in selenium chemistry and biochemistry, and here readers will find key insights into the chalcogen bond and its role in the biological activity of organoselenium compounds.

Download or read book Onium Ions written by George A. Olah and published by John Wiley & Sons. This book was released on 1998-08-11 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Der Autor George Olah, der 1995 den Nobelpreis erhielt, stellt in seinem Buch die Anwendung von Onium-Ionen als elektrophile Reagenzien und Katalysatoren dar und erläutert diese für die chemische Synthese bedeutsamen Verbindungen. (8/98)

Download or read book Chemistry 2e written by Paul Flowers and published by . This book was released on 2019-02-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry 2e is designed to meet the scope and sequence requirements of the two-semester general chemistry course. The textbook provides an important opportunity for students to learn the core concepts of chemistry and understand how those concepts apply to their lives and the world around them. The book also includes a number of innovative features, including interactive exercises and real-world applications, designed to enhance student learning. The second edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Substantial improvements have been made in the figures, illustrations, and example exercises that support the text narrative. Changes made in Chemistry 2e are described in the preface to help instructors transition to the second edition.

Download or read book Organoselenium Compounds in Biology and Medicine written by Vimal Kumar Jain and published by Royal Society of Chemistry. This book was released on 2017-10-03 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organoselenium shows incredible promise in medicine, particularly cancer therapy. This book discusses organoselenium chemistry and biology in the context of its therapeutic potential, taking the reader through synthetic techniques, bioactivity and therapeutic applications. Divided into three sections, the first section describes synthetic advances in bioactive selenium compounds, revealing how organoselenium compound toxicity, redox properties and specificity can be further tuned. The second section explains the biophysics and biochemistry of organoselenium compounds, as well as selenoproteins. The final section closes with several chapters devoted to therapeutic and medicinal applications of organoselenium compounds, covering radioprotectors, anticancer agents and antioxidant behaviour. With contributions from leading global experts, this book covers recent advances in the field and is an ideal reference for those researching organoselenium compounds.

Download or read book Halogen Bonding in Solution written by Stefan Huber and published by John Wiley & Sons. This book was released on 2021-04-19 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited on the importance of halogen bonding in solution, demonstrating the specific advantages in various fields - from synthesis and catalysis to biochemistry and electrochemistry! Halogen bonding (XB) describes the interaction between an electron donor and the electrophilic region of a halogen atom. Its applicability for molecular recognition processes long remained unappreciated and has mostly been studied in solid state until recently. As most physiological processes and chemical reactions take place in solution, investigations in solutions are of highest relevance for its use in organic synthesis and catalysis, pharmaceutical chemistry and drug design, electrochemistry, as well as material synthesis. Halogen Bonding in Solution gives a concise overview of halogen bond interactions in solution. It discusses the history and electronic origin of halogen bonding and summarizes all relevant examples of its application in organocatalysis. It describes the use of molecular iodine in catalysis and industrial applications, as well as recent developments in anion transport and binding. Hot topic: Halogen bonding is an important interaction between molecules or within a molecule. The field has developed considerably in recent years, with numerous different approaches and applications having been published. Unique: There are several books on halogen bonding in solid state available, but this will be the first one focused on halogen bonding in solution. Multi-disciplinary: Summarizes the history and nature of halogen bonding in solution as well as applications in catalysis, anion recognition, biochemistry, and electrochemistry. Aimed at facilitating exciting future developments in the field, Halogen Bonding in Solution is a valuable source of information for researchers and professionals working in the field of supramolecular chemistry, catalysis, biochemistry, drug design, and electrochemistry.

Download or read book Boron Hydride Chemistry written by Earl Muetterties and published by Elsevier. This book was released on 2012-12-02 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron Hydride Chemistry covers the significant contributions of boron hydride research in the subjects of bonding, structure, and stereochemistry. This book contains 12 chapters that illustrate the merging of certain areas of boron hydride chemistry with other disciplines, such as organic, organometallic, and transition metal chemistry. After providing an overview of the general geometric, stereochemical, and dynamic stereochemical features of boron hydrides, this book goes on exploring the bonding theory and theoretical research on boron hydrides, with an emphasis on boron hydrides that have open polyhedral structures. These topics are followed by discussions on gas phase and solution reactions of borane and substituted boranes. A chapter focuses on the chemistry of cations containing boron atoms bonded to hydrogen. The remaining chapters examine the syntheses, structures, bonding, spectral properties, and chemistry of specific boron hydrides, including borazines, closo-boron hydrides, carboranes, icosahedral carboranes, and close- and nido-heteroboranes. Inorganic chemists and researchers, teachers, and undergraduate inorganic chemistry students will find this book invaluable.