Chemical Reactivity

The growth of technology for chemical assessment has led to great developments in the investigation of chemical reactivity in recent years, but key information is often dispersed across many different research fields. Combining both original principles and the cutting-edge theories used in chemical reactivity analysis, Chemical Reactivity, Volume 1 present the latest developments in theoretical chemistry and its application for the assessment of chemical processes. Beginning with an exploration of different theories and principles relating to electronic structure and reactivity of confined electronic systems, the book goes on to highlight key information on such topics as Dyson orbitals, target-ion overlaps, reaction fragility, magnetizability principles and the Fuki function. Density Functional Theory is discussed in relation to numerous different principles and approaches, with further information on constrained methods and diabatic models, bonding evolution theory, orbital-based population analysis models and charge transfer models, and Quantum chemistry and QTAIM. Consolidating the knowledge of a global team of experts in the field, Chemical Reactivity, Volume 1: Theories and Principles is a useful resource for both students and researchers interested in gaining greater understanding of the principles and theories underpinning chemical reactivity analysis. Provides readers with the key information needed to gain a good overview of contemporary chemical reactivity studies and a clear understanding of the theory behind state-of-the-art methods in the field Highlights advances in the computational descriptions of reactivity, including reactivity in confined environments, conceptual density functional theory, and multi-reference quantum chemistry Provides comprehensive coverage by consolidating the knowledge of many well-known researchers in the field from around the world

In the 1970s, Density Functional Theory (DFT) was borrowed from physics and adapted to chemistry by a handful of visionaries. Now chemical DFT is a diverse and rapidly growing field, its progress fueled by numerous developing practical descriptors that make DFT as useful as it is vast. With 34 chapters written by 65 eminent scientists from 13 different countries, Chemical Reactivity Theory: A Density Functional View represents the true collaborative spirit and excitement of purpose engendered by the study and use of DFT. This work instructs readers on how concepts from DFT can be used to describe, understand, and predict chemical reactivity. Prior knowledge is not required as early chapters, written by the field’s original pioneers, cover basic ground-state DFT and its extensions to time-dependent systems, excited states, and spin-polarized molecules. While the text is accessible to senior undergraduate or beginning graduate students, experienced researchers are certain to find interesting new insights in the perspectives presented by these seasoned experts. This remarkable one-of-a-kind resource— Provides authoritative accounts on aspects of the theory of chemical reactivity Describes various global reactivity descriptors, such as electronegativity, hardness, and electrophilicity Introduces and analyzes the usefulness of local reactivity descriptors such as Fukui, shape, and electron localization functions Offers an in-depth analysis of how chemical reactivity changes during different physicochemical processes or in the presence of external perturbations The book covers a gamut of related topics such as methods for determining atoms-in-molecules, population analysis, electrostatic potential, molecular quantum similarity, aromaticity, and biological activity. It also discusses the role of reactivity concepts in industrial and other practical applications. Whether you are searching for new products or new research projects, this is the ultimate guide for understanding chemical reactivity.

Chemical Structure and Reactivity: An Integrated Approach rises to the challenge of depicting the reality of chemistry. Offering a fresh approach, it depicts the subject as a seamless discipline, showing how organic, inorganic, and physical concepts can be blended together to achieve the common goal of understanding chemical systems.

This book gathers original contributions from a selected group of distinguished researchers that are actively working in the theory and practical applications of solvent effects and chemical reactions. The importance of getting a good understanding of surrounding media effects on chemical reacting system is difficult to overestimate. Applications go from condensed phase chemistry, biochemical reactions in vitro to biological systems in vivo. Catalysis is a phenomenon produced by a particular system interacting with the reacting subsystem. The result may be an increment of the chemical rate or sometimes a decreased one. At the bottom, catalytic sources can be characterized as a special kind of surrounding medium effect. The materials involving in catalysis may range from inorganic components as in zeolites, homogenous components, enzymes, catalytic antibodies, and ceramic materials. . With the enormous progress achieved by computing technology, an increasing number of models and phenomenological approaches are being used to describe the effects of a given surrounding medium on the electronic properties of selected subsystem. A number of quantum chemical methods and programs, currently applied to calculate in vacuum systems, have been supplemented with a variety of model representations. With the increasing number of methodologies applied to this important field, it is becoming more and more difficult for non-specialist to cope with theoretical developments and extended applications. For this and other reasons, it is was deemed timely to produce a book where methodology and applications were analyzed and reviewed by leading experts in the field.

"Chapter Goals" and "Chapter Goals Revisited" are two new features in this revision. Each chapter starts with a list of goals that allows students to see what is ahead. The chapter concludes with a repetition of that list with summary information added. General ChemistryNow is correlated to this list. New to this edition are dozens of "Active Figures" to help students visualize chemistry in action. These animated versions of text art help students master key concepts from the book. "Active Figures" can be used as demonstrations in the classroom and each figure is paired with a guided exploration and exercise to ensure students understand the concept being illustrated. In-text worked "Examples" follow a four-part structure: "Problem" statement, "Strategy" for approaching the problem, fully worked "Solution," and, where appropriate, a "Comment" on the problem and solution. Through this approach, students learn how to approach a problem rather than merely learning to memorize problem types and memorized solution approaches. Exercises appear throughout the text so students can check their comprehension of the material. Answers are in an appendix. "Problem-Solving Tips" provide readers tips for determining how to approach and solve problems. "Chemical Perspectives" are essays that bring relevance and perspective to a study of chemistry. In order to put chemistry in its historical context, "Historical Perspective" essays describe the people who were key to developing the concepts of the chapter. "A Closer Look" essays describe ideas that form the background to material under discussion or provide another dimension of the subject. - Publisher.

Drawn from international sources, this book provides principles and strategies for the evaluation of chemical reactions, and for using this information in process design and management. A useful resource for engineers who design, start-up, operate, and manage chemical and petrochemical plants, the book places special emphasis on the use of state-of-the-art technology in theory, testing methods, and applications in design and operations.

Taking an evidence-first big picture approach, Chemistry: Human Activity, Chemical Reactivity encourages students to think like a chemist, develop critical understanding of what chemistry is, why it is important and how chemists arrive at their discoveries. Flipping the traditional model of presenting facts and building to applications, this text begins with contexts that are real-life and matter to students – from doping in sports, to the chemistry behind the treads of wall-climbing robots. Informed by the latest chemical education research, Chemistry: Human Activity, Chemical Reactivity presents chemistry as the exciting, developing human activity that it is, rather than a body of facts, theories, and skills handed down from the past. Along with the innovative MindTap Reader and OWLv2 learning platform, this text uses unique case studies and critically acclaimed interactive e-resources to help students learn chemistry and how it is helping to address global challenges of the 21st century.

The progress in computer technology during the last 10-15 years has enabled the performance of ever more precise quantum mechanical calculations related to structure and interactions of chemical compounds. However, the qualitative models relating electronic structure to molecular geometry have not progressed at the same pace. There is a continuing need in chemistry for simple concepts and qualitatively clear pictures that are also quantitatively comparable to ab initio quantum chemical calculations. Topological methods and, more specifically, graph theory as a fixed-point topology, provide in principle a chance to fill this gap. With its more than 100 years of applications to chemistry, graph theory has proven to be of vital importance as the most natural language of chemistry. The explosive development of chemical graph theory during the last 20 years has increasingly overlapped with quantum chemistry. Besides contributing to the solution of various problems in theoretical chemistry, this development indicates that topology is an underlying principle that explains the success of quantum mechanics and goes beyond it, thus promising to bear more fruit in the future.