Description - The Role of the Solvent in Chemical Reactions by Erwin Buncel
The Oxford Chemistry Masters series is designed to provide clear and concise accounts of important topics - both established and emergent - that may be encountered by chemistry students as they progress from the senior undergraduate stage through postgraduate study to leadership in research. These Masters assume little prior knowledge, other than the foundations provided by an undergraduate degree in chemistry, and lead the reader through to an appreciation of the
state of the art in the topic whilst providing an entree to the original literature in the field.The role of the solvent in chemical reactions is one of immediate and daily concern
to the practising chemist. Whether in the laboratory, or in industry, most reactions are carried out in the liquid phase. In the majority of these, one or two reacting components, or reagents, are dissolved in a suitable medium and the reaction is allowed to take place. Given the importance of solvent, the need for an in-depth understanding of this topic is obvious. However, many inorganic and organic chemistry texts only make passing references to solvents, or worse still, fail to mention that
a given reaction takes place in a particular solvent at all. This book successfully addresses the gap in our understanding of solvent chemistry, and brings the role of the solvent rightly to the
fore.The book begins with a summary of essential thermodynamic and kinetic facts, emphasizing aspects of these fields, where relevant, to reactions in solution. Chapter 2 introduces the reader to the role of the solvent purely as a medium, touching on early theories based on electrostatic considerations (Born and Kirkwood-Onsager) and the solubility parameter (Hildebrand). Chapter 3 discusses the role of solvent as an active participant, chiefly through hydrogen bonding,
Brønsted-Lowry and Lewis acid-base interactions, including hard and soft acids and bases. The ability of solvents to serve as media for oxidation and reduction is also touched upon. There then follows a chapter
on chemometrics; the application of statistical methods to chemical phenomena and spectra, chiefly linear free energy correlations and principal component analysis. A novel method for the presentation of data is also described. In chapter 5, methods of theoretical calculation are discussed. These include quantum-mechanical ab-initio and semiempirical methods, integral-equation theories, and methods based on statistical mechanics (Monte Carlo and molecular dynamics). Examples to illustrate
these methods are detailed in the chapter. Chapters 6 and 7 look at a selection of particular classes of solvents including aprotic-dipolar, acidic, basic, room-temperature ionic, and chiral. The
suitability of examples from each class of solvent for particular purposes is also discussed. The final chapter presents some concluding observations. Throughout the book, the authors use a semiquantitative and thermodynamically based approach, deliberately avoiding unnecessary detail or rigour, so that the discussions are accessible to both senior undergraduates and postgraduates. The text is also interspersed with helpful examples taken from both inorganic and organic
chemistry.
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