An Ordering Concept on the Basis of Alternative Principles in Chemistry

An Ordering Concept on the Basis of Alternative Principles in Chemistry PDF Author: Paul Heimbach
Publisher: Springer Science & Business Media
ISBN: 3642838065
Category : Science
Languages : en
Pages : 227

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Book Description
Considering aspects of symmetry rules in chemistry, one is faced with con tradictory terms as for example, "90 % concertedness" sometimes being used in literature. To accept conservation of orbital symmetry to be as controlled as inversion by alternative principles seems far more promising. The intention of this book is aimed at introducing a qualitative understanding of phase rela tions in electromagnetic interactions. Avoiding one-sided dogmatism we tried to demonstrate the importance of alternative principles as guidelines to the evolution of alternative order in chemical systems. Passing through the jungle of information it became extremly important to control again and again our insights into the ordering phenomena by experi ments under conditions as coherent as possible. We became more aware of the fact that chemistry - the science of "becoming" in complex systems - can not be understood by mechanistic details, i. e. THROUGHPUT-studies alone, because the mechanism is only true for the special system under inves tigation and does not offer a tool for the evolution of opposite order. We had to accept chemistry as a mediator between molecular physics and general epistemology. This quite unusual combination was directed by excel lent teachers and the realizations were made possible by enthusiastic, open minded coworkers (see references). The next target we will strive for on this journey will be to quantify the alternative principles, that means obtaining the order parameters of H. Haken (e. g. in asymmetric synthesis).

An Ordering Concept on the Basis of Alternative Principles in Chemistry

An Ordering Concept on the Basis of Alternative Principles in Chemistry PDF Author: Paul Heimbach
Publisher: Springer Science & Business Media
ISBN: 3642838065
Category : Science
Languages : en
Pages : 227

Get Book Here

Book Description
Considering aspects of symmetry rules in chemistry, one is faced with con tradictory terms as for example, "90 % concertedness" sometimes being used in literature. To accept conservation of orbital symmetry to be as controlled as inversion by alternative principles seems far more promising. The intention of this book is aimed at introducing a qualitative understanding of phase rela tions in electromagnetic interactions. Avoiding one-sided dogmatism we tried to demonstrate the importance of alternative principles as guidelines to the evolution of alternative order in chemical systems. Passing through the jungle of information it became extremly important to control again and again our insights into the ordering phenomena by experi ments under conditions as coherent as possible. We became more aware of the fact that chemistry - the science of "becoming" in complex systems - can not be understood by mechanistic details, i. e. THROUGHPUT-studies alone, because the mechanism is only true for the special system under inves tigation and does not offer a tool for the evolution of opposite order. We had to accept chemistry as a mediator between molecular physics and general epistemology. This quite unusual combination was directed by excel lent teachers and the realizations were made possible by enthusiastic, open minded coworkers (see references). The next target we will strive for on this journey will be to quantify the alternative principles, that means obtaining the order parameters of H. Haken (e. g. in asymmetric synthesis).

An Ordering Concept on the Basis of Alternative Principles in Chemistry

An Ordering Concept on the Basis of Alternative Principles in Chemistry PDF Author: Paul Heimbach
Publisher: Springer
ISBN: 9783642838071
Category : Science
Languages : en
Pages : 214

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Book Description
Considering aspects of symmetry rules in chemistry, one is faced with con tradictory terms as for example, "90 % concertedness" sometimes being used in literature. To accept conservation of orbital symmetry to be as controlled as inversion by alternative principles seems far more promising. The intention of this book is aimed at introducing a qualitative understanding of phase rela tions in electromagnetic interactions. Avoiding one-sided dogmatism we tried to demonstrate the importance of alternative principles as guidelines to the evolution of alternative order in chemical systems. Passing through the jungle of information it became extremly important to control again and again our insights into the ordering phenomena by experi ments under conditions as coherent as possible. We became more aware of the fact that chemistry - the science of "becoming" in complex systems - can not be understood by mechanistic details, i. e. THROUGHPUT-studies alone, because the mechanism is only true for the special system under inves tigation and does not offer a tool for the evolution of opposite order. We had to accept chemistry as a mediator between molecular physics and general epistemology. This quite unusual combination was directed by excel lent teachers and the realizations were made possible by enthusiastic, open minded coworkers (see references). The next target we will strive for on this journey will be to quantify the alternative principles, that means obtaining the order parameters of H. Haken (e. g. in asymmetric synthesis).

Chirality

Chirality PDF Author: Rudolf Janoschek
Publisher: Springer Science & Business Media
ISBN: 3642765696
Category : Science
Languages : en
Pages : 258

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Book Description
The phenomenon of chirality occurs in many disciplines of natural sciences, such as elementary particle physics, chemistry of molecules, biopolymers and crystals, pharmacology, biology (snails, winding plants), and medicine (handedness). Review articles are widely available for most of these fields and written for the respective experts. This book gives for the first time an interdisciplinary comprehensive treatment of chirality. Ten well-known scientists describe the present state of the art in different fields in introductory review articles without going into detail. Most importantly, the book is more than an accumulation of different chapters insofar as biomolecular homochirality is traced back to the chirality of elementary particles in atomic nuclei. The authors have attempted to present chemistry for physicists and physics for chemists, etc. Any scientist who is engaged in chirality may benefit from the present survey.

Bibliography of Agriculture

Bibliography of Agriculture PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1120

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Book Description


Cumulative Book Index

Cumulative Book Index PDF Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 2280

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Book Description
A world list of books in the English language.

Chemical Misconceptions

Chemical Misconceptions PDF Author: Keith Taber
Publisher: Royal Society of Chemistry
ISBN: 9780854043866
Category : Education
Languages : en
Pages : 204

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Book Description
Part one includes information on some of the key alternative conceptions that have been uncovered by research and general ideas for helping students with the development of scientific conceptions.

Symmetry as a Developmental Principle in Nature and Art

Symmetry as a Developmental Principle in Nature and Art PDF Author: Werner Hahn
Publisher: World Scientific
ISBN: 9810223633
Category : Mathematics
Languages : en
Pages : 533

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Book Description
Looking beyond the boundaries of various disciplines, the author demonstrates that symmetry is a fascinating phenomenon which provides endless stimulation and challenges. He explains that it is possible to readapt art to the sciences, and vice versa, by means of an evolutionary concept of symmetry. Many pictorial examples are included to enable the reader to fully understand the issues discussed. Based on the artistic evidence that the author has collected, he proposes that the new ars evolutoria can function as an example for the sciences.The book is divided into three distinct parts, each one focusing on a special issue. In Part I, the phenomenon of symmetry, including its discovery and meaning is reviewed. The author looks closely at how Vitruvius, Polyclitus, Democritus, Plato, Aristotle, Plotinus, Augustine, Alberti, Leonardo da Vinci and Durer viewed symmetry. This is followed by an explanation on how the concept of symmetry developed. The author further discusses symmetry as it appears in art and science, as well as in the modern age. Later, he expounds the view of symmetry as an evolutionary concept which can lead to a new unity of science. In Part II, he covers the points of contact between the form-developing process in nature and art. He deals with biological questions, in particular evolution.The collection of new and precise data on perception and knowledge with regard to the postulated reality of symmetry leads to further development of the evolutionary theory of symmetry in Part III. The author traces the enormous treasure of observations made in nature and culture back to a few underlying structural principles. He demonstrates symmetry as a far-reaching, leading, structuring, causal element of evolution, as the idea lying behind nature and culture. Numerous controllable reproducible double-mirror experiments on a new stereoscopic vision verify a symmetrization theory of perception.

Concepts and Methods in Modern Theoretical Chemistry

Concepts and Methods in Modern Theoretical Chemistry PDF Author: Swapan Kumar Ghosh
Publisher: CRC Press
ISBN: 1466505311
Category : Science
Languages : en
Pages : 489

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Book Description
Concepts and Methods in Modern Theoretical Chemistry: Electronic Structure and Reactivity, the first book in a two-volume set, focuses on the structure and reactivity of systems and phenomena. A new addition to the series Atoms, Molecules, and Clusters, this book offers chapters written by experts in their fields. It enables readers to learn how co

Quantum Theory for Chemical Applications

Quantum Theory for Chemical Applications PDF Author: Jochen Autschbach
Publisher: Oxford University Press
ISBN: 0190920815
Category : Science
Languages : en
Pages : 416

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Book Description
Quantum theory and computational chemistry have become integral to the fields of chemistry, chemical engineering, and materials chemistry. Concepts of chemical bonding, band structure, material properties, and interactions between light and matter at the molecular scale tend to be expressed in the framework of orbital theory, even when numerical calculations go beyond simple orbital models. Yet, the connections between these theoretical models and experimental observations are often unclear. It is important--now more than ever--that students master quantum theory if they are going to apply chemical concepts. In this book, Jochen Autschbach connects the abstract with the concrete in an elegant way, creating a guiding text for scholars and students alike. Quantum Theory for Chemical Applications covers the quantum theory of atoms, molecules, and extended periodic systems. Autschbach goes beyond standard textbooks by connecting the molecular and band structure perspectives, covering response theory, and more. The book is broken into four parts: Basic Theoretical Concepts; Atomic, Molecular, and Crystal Orbitals; Further Basic Concepts of Quantum Theory; and Advanced Topics, such as relativistic quantum chemistry and molecule-light interactions. The foresight Autschbach provides is immense, and he sets up a solid theoretical background for nearly every quantum chemistry method used in contemporary research. Because quantum theory tells us what the electrons do in atoms, molecules, and extended systems, the pages in this book are full of answers to questions both long-held and never-before considered.

Management Principles of Sustainable Industrial Chemistry

Management Principles of Sustainable Industrial Chemistry PDF Author: Genserik L. L. Reniers
Publisher: John Wiley & Sons
ISBN: 3527649506
Category : Technology & Engineering
Languages : en
Pages : 263

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Book Description
Approaching sustainability from the perspectives of engineering and multiple scientific disciplines, this book incorporates the concepts of intergenerational equity and ecological capabilities, while promoting scientific rigor for the analysis of sustainability and the use of appropriate metrics to determine the comparative merits of alternatives. The chapters are organized around the key non-technological themes of sustainable industrial chemistry and provide an overview of the managerial principles to enhance sustainability in the chemicals sector. The book strives to provide an intellectual forum and stimulus for defining the roles chemical engineers can play in achieving sustainable development. Suitable for industry and graduate education, this is the one-stop guide to greener, cleaner, economically viable and more efficient chemical industries.