Addy Pross - Böcker
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Seventy years ago, Erwin Schrödinger posed a profound question: 'What is life, and how did it emerge from non-life?' This problem has puzzled biologists and physical scientists ever since. Living things are hugely complex and have unique properties, such as self-maintenance and apparently purposeful behaviour which we do not see in inert matter. So how does chemistry give rise to biology? What could have led the first replicating molecules up such a path? Now, developments in the emerging field of 'systems chemistry' are unlocking the problem. Addy Pross shows how the different kind of stability that operates among replicating molecules results in a tendency for chemical systems to become more complex and acquire the properties of life. Strikingly, he demonstrates that Darwinian evolution is the biological expression of a deeper, well-defined chemical concept: the whole story from replicating molecules to complex life is one continuous process governed by an underlying physical principle. The gulf between biology and the physical sciences is finally becoming bridged.This new edition includes an Epilogue describing developments in the concepts of fundamental forms of stability discussed in the book, and their profound implications.Oxford Landmark Science books are 'must-read' classics of modern science writing which have crystallized big ideas, and shaped the way we think.
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Traditionally, physical organic chemistry and theoretical organicchemistry have been treated as separate disciplines. This new bookbridges these two areas in order to give the reader a newperspective on the nature of organic reactivity. A key element ofthis new approach is the author's extensive nonmathematicaldescription of the recently developed curve-crossing model thatdescribes why chemical reactions have an activation barrier, andspecifies the factors that govern the barrier heights. In addition,the author draws from physical chemistry and transition-metalchemistry to present an original and detailed description ofelectron transfer theory, and covers the recent discovery that theelectron transfer process is intimately related to many basicorganic processes. This book has been divided into three parts to facilitate itsmixture of classical organic chemistry with new and establishedtheoretical ideas. Part A presents an introductory description ofmolecular orbital and valence bond theories with emphasis on thequalitative aspects that can be applied to practical problems inorganic structure and reactivity. Part B describes the keyprinciples of physical organic chemistry and incorporates a mainlyqualitative description of the Marcus theory of electrontransfer. Building on the theoretical framework developed in parts A and B,part C offers an overview of the basic reactions of organicchemistry: nucleophilic and electrophilic substitution, and radicaland pericyclic reactivity. In addition, part C clearly explains themost recent unifying description of organic reactivity for organicchemists and for graduate and advanced undergraduate students.