Selectivity in Chemical Reactions

Selectivity in Chemical Reactions PDF Author: J.C. Whitehead
Publisher: Springer Science & Business Media
ISBN: 940093047X
Category : Science
Languages : en
Pages : 562

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Book Description
The aim of this Workshop on "Selectivity in Chemical Reactions" was to examine the specific preferences exhibited by simple chemical reactions with regards to reagents having particular energy states, symmetries, alignment and orientation and the resulting formation of certain products with their corresponding energies, states, alignment and polarisation. Such problems come close to the ultimate goal of reaction dynamics of being able to determine experimentally and theoretically state-to-state cross sections and stereochemical effects under well defined and characterised conditions. There are many examples of highly selective and specific processes to be found in atmospheric and combustion chemistry and the production of population inversions amongst vibrational and electronic states lies at the heart of the development of chemical laser systems. Only when we can understand the fundamental processes that underlie the selectivity in the formation of products in a chemical reaction and the specific requirements of initial states of the reagents, can we expect to be able to develop the explanatory and predictive tools necessary to apply the subject to the development of new laser systems, efficient combustion schemes and specific methods of chemical synthesis, to the control of atmospheric pollution and to all problems in which it is necessary to direct the outcome of a chemical reaction in a specific way. The brief given to the Workshop was to critically review the field, to discuss the present limitations and difficulties and to identify new directions.

Selectivity in Chemical Reactions

Selectivity in Chemical Reactions PDF Author: J.C. Whitehead
Publisher: Springer Science & Business Media
ISBN: 940093047X
Category : Science
Languages : en
Pages : 562

Get Book

Book Description
The aim of this Workshop on "Selectivity in Chemical Reactions" was to examine the specific preferences exhibited by simple chemical reactions with regards to reagents having particular energy states, symmetries, alignment and orientation and the resulting formation of certain products with their corresponding energies, states, alignment and polarisation. Such problems come close to the ultimate goal of reaction dynamics of being able to determine experimentally and theoretically state-to-state cross sections and stereochemical effects under well defined and characterised conditions. There are many examples of highly selective and specific processes to be found in atmospheric and combustion chemistry and the production of population inversions amongst vibrational and electronic states lies at the heart of the development of chemical laser systems. Only when we can understand the fundamental processes that underlie the selectivity in the formation of products in a chemical reaction and the specific requirements of initial states of the reagents, can we expect to be able to develop the explanatory and predictive tools necessary to apply the subject to the development of new laser systems, efficient combustion schemes and specific methods of chemical synthesis, to the control of atmospheric pollution and to all problems in which it is necessary to direct the outcome of a chemical reaction in a specific way. The brief given to the Workshop was to critically review the field, to discuss the present limitations and difficulties and to identify new directions.

Handbook of Batch Process Design

Handbook of Batch Process Design PDF Author: P.N. Sharratt
Publisher: Springer Science & Business Media
ISBN: 9400914555
Category : Science
Languages : en
Pages : 333

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Book Description
Batch processes are used to manufacture many fine organic chemicals, and as such they can be considered to underpin much of the modern chemical industry. Despite widespread use and a consequent huge contribution to wealth creation, batch processes have attracted limited attention outside the user industries. Batch chemicals processing uses a number of core techniques and technologies, such as scheduling and sequence control, agitation and batch filtration. The combination of these technologies with often complex chemistry, the multi-purpose nature of much of this type of plant, the distinctive safety and environmental issues, and a fast moving commercial environment makes the development of a successful batch process a considerable challenge for the chemist or engineer. The literature on the topics covered in this book is fragmented and often not easily accessible, so this handbook has been written to address this problem and to bring together design and process analysis methods in the core areas of batch process design. By combining the science and pragmatism required in the development of successful batch processes this new book provides answers to real problems in an accessible and concise way. Written by an international team of authors drawn from industry, consulting and academe, this book is an essential part of the library of any chemist, technologist or engineer working on the development of new or existing batch processes.

Selectivity in Catalysis

Selectivity in Catalysis PDF Author: Mark E. Davis
Publisher:
ISBN:
Category : SCIENCE
Languages : en
Pages : 432

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Book Description
Discusses recent research and provides tutorial chapters on enhancing selectivity in catalysis through stereoselectivity, reaction pathway control, shape selectivity, and alloys and clusters. Presents an interdisciplinary approach to increasing selectivity in homogeneous and heterogeneous catalysis research. Includes an overview chapter that discusses the current state of the field and offers a perspective on future directions.

Selectivity in Organic Synthesis

Selectivity in Organic Synthesis PDF Author: Robert S. Ward
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 194

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Book Description
Selectivity is an important part of organic synthesis. The whole basis of organic chemistry, and especially organic synthesis, depends upon the selectivity which can be achieved in organic reactions. This concise textbook describes the strategies which can be adopted to improve selectivity, and the reactions which have been specially designed to afford high selectivity. The book illustrates the range of processes to which these principles can be applied and the high degree of selectivity which can be achieved. Selectivity in Organic Synthesis provides a solid introduction to this subject, focusing on the key areas and applications. Selectivity in Organic Synthesis features: * A concise introduction to selectivity in organic chemistry. * Lucidly written text including many carefully chosen examples and applications. * Numerous problems along with their solutions to help and encourage the reader. Suitable for organic chemistry students taking a course on organic synthesis or asymmetric synthesis in the 3rd or final year of an undergraduate chemistry course or in the first year of a postgraduate course.

Chemical Reactions and Processes Under Flow Conditions

Chemical Reactions and Processes Under Flow Conditions PDF Author: Santíago V. Luis
Publisher: Royal Society of Chemistry
ISBN: 0854041923
Category : Science
Languages : en
Pages : 213

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Book Description
On the contrary, flow continuous processes present a series of advantages leading to new ways to synthesise chemical products.

Essentials of Chemical Reaction Engineering

Essentials of Chemical Reaction Engineering PDF Author: H. Scott Fogler
Publisher: Pearson Education
ISBN: 0137146124
Category : Science
Languages : en
Pages : 741

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Book Description
Accompanying DVD-ROM contains many realistic, interactive simulations.

Elements of Chemical Reaction Engineering

Elements of Chemical Reaction Engineering PDF Author: H. Scott Fogler
Publisher: Pearson Educación
ISBN: 9789702600794
Category : Science
Languages : es
Pages : 1006

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Book Description
"The fourth edition of Elements of Chemical Reaction Engineering is a completely revised version of the book. It combines authoritative coverage of the principles of chemical reaction engineering with an unsurpassed focus on critical thinking and creative problem solving, employing open-ended questions and stressing the Socratic method. Clear and organized, it integrates text, visuals, and computer simulations to help readers solve even the most challenging problems through reasoning, rather than by memorizing equations."--BOOK JACKET.

Molecular Encapsulation

Molecular Encapsulation PDF Author: Udo H. Brinker
Publisher: John Wiley & Sons
ISBN: 1119957109
Category : Science
Languages : en
Pages : 477

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Book Description
The inclusion of small guest molecules within suitable host compounds results in constrained systems that imbue novel properties upon the incarcerated organic substrates. Supramolecular tactics are becoming widely employed and this treatise spotlights them. Often, the impact of encapsulation on product formation is substantial. The use of constrained systems offers the means to steer reactions along desired pathways. A broad overview of various supramolecular approaches aimed to manipulate chemical reactions are featured. The following topics are covered in detail: - general concepts governing the assembly of the substrate with the reaction vessel - preparation of molecular reactors - stabilization of reactive intermediates - reactions in water, in organic solvents, and in the solid state - photochemical reactions - reactions with unusual regioselectivity Molecular Encapsulation: Organic Reactions in Constrained Systems is an essential guide to the art of changing the outcome and the selectivity of a chemical reaction using nano-sized reaction vessels. It will find a place on the bookshelves of students and researchers working in the areas of supramolecular chemistry, nanotechnology, organic and pharmaceutical chemistry, and materials science as well.

Chemical Reactor Development

Chemical Reactor Development PDF Author: D. Thoenes
Publisher: Springer Science & Business Media
ISBN: 940158382X
Category : Science
Languages : en
Pages : 358

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Book Description
Chemical Reactor Development is written primarily for chemists and chemical engineers who are concerned with the development of a chemical synthesis from the laboratory bench scale, where the first successful experiments are performed, to the design desk, where the first commercial reactor is conceived. It is also written for those chemists and chemical engineers who are concerned with the further development of a chemical process with the objective of enhancing the performance of an existing industrial plant, as well as for students of chemistry and chemical engineering. In Part I, the `how' and the `why' of chemical reaction engineering are explained, particularly for those who are not familiar with this area. Part II deals with the effects of a number of physical phenomena on the outcome of chemical reactions, such as micro and meso-mixing and residence time distribution, mass transfer between two phases, and the formation of another phase, such as in precipitations. These scale-dependent effects are not only important in view of the conversion of chemical reactions, but also with regard to the selectivity, and in the case of solid products, to their morphology. In Part III, some applications are treated in a general way, including organic syntheses, the conversion and formation of inorganic solids, catalytic processes and polymerizations. The last chapter gives a review of the importance of the selectivity for product quality and for the purity of waste streams. For research chemists and chemical engineers whose work involves chemical reaction engineering. The book is also suitable as a supplementary graduate text.

Industrial Catalysis

Industrial Catalysis PDF Author: James D Burrington
Publisher: World Scientific Publishing Company
ISBN: 1783269006
Category : Science
Languages : en
Pages : 296

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Book Description
Industrial Catalysis: Chemistry and Mechanism is an essential textbook for upper-level undergraduate and graduate students with an interest in the underlying concepts of catalysis, industrial organic chemistry and the mechanism of catalysis. For undergraduates it provides an introduction to the basic catalytic principles and industrial processes. Graduate students will find that the book gives an in-depth understanding of the mechanism of catalytic surface intermediates and the practice of modern catalysis research. For the post graduate and industrial chemist involved in catalysis research, it is a valuable reference text as a compendium of mechanisms by which major industrial catalytic processes operate. This unique book fills the gap between basic organic chemistry and fundamental chemical principles of catalysis, and is a must read for students and researchers in the field.