Автор: Kotz/Mcmurray/Mahaffy Название: Chemistry Human Activity Chemical Reactivity Ebook & Owl ISBN: 1408039729 ISBN-13(EAN): 9781408039724 Издательство: Cengage Learning Рейтинг: Цена: 79190.00 T Наличие на складе: Нет в наличии.
Автор: Hogg Название: Bndl: Chem2 + Pac Chem In Your World ISBN: 113396298X ISBN-13(EAN): 9781133962984 Издательство: Cengage Learning Рейтинг: Цена: 70390.00 T Наличие на складе: Нет в наличии.
Автор: Dulieu Название: Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero ISBN: 1782625976 ISBN-13(EAN): 9781782625971 Издательство: Royal Society of Chemistry Рейтинг: Цена: 280190.00 T Наличие на складе: Нет в наличии. Описание: Explores the theoretical and experimental aspects of cold and ultracold molecular collisions, for students and researchers in theoretical chemistry and chemical reaction/molecular dynamics.
Автор: Perez Pariente, Joaquin. Название: Structure and reactivity of metals in zeolite materials / ISBN: 3319989049 ISBN-13(EAN): 9783319989044 Издательство: Springer Рейтинг: Цена: 279500.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This volume provides the reader with the most up-to-date and relevant knowledge on the reactivity of metals located in zeolite materials, either in framework or extra-framework positions, and the way it is connected with the nature of the chemical environment provided by the host. Since the first report of the isomorphous substitution of titanium in the framework of zeolites giving rise to materials with unusual catalytic properties, the incorporation of many other metals have been investigated with the aim for developing catalysts with improved performance in different reactions. The continuous expansion of the field, both in the variety of metals and zeolite structures, has been accompanied by an increasing focus on the relationship between the reactivity of metal centers and their unique chemical environment.The concepts covered in this volume are of interest to people working in the field of inorganic and physical chemistry, catalysis and chemical engineering, but also for those more interested in theoretical approaches to chemical reactivity. In particular the volume is useful to postgraduate students conducting research in the design, synthesis and catalytic performance of metal-containing zeolites in both academic and application contexts.
Автор: Ramon Carb?-Dorca Название: Molecular Similarity and Reactivity ISBN: 0792333098 ISBN-13(EAN): 9780792333098 Издательство: Springer Рейтинг: Цена: 204040.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Ultimately, the recognition and analysis of molecular similarities serve as the basis of an understanding of molecular structures and properties, and rep- resent the first steps in the development of theoretical models explaining chemical behavior. Molecular similarity and molecular reactivity are strongly related.
Автор: L Lahaye; Pierre Ehrburger Название: Fundamental Issues in Control of Carbon Gasification Reactivity ISBN: 9401054614 ISBN-13(EAN): 9789401054614 Издательство: Springer Рейтинг: Цена: 373610.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Proceedings of the NATO Advanced Research Workshop, Cadarache, Saint Paul lex Durance, France, July 30-August 3, 1990
Автор: Wicks Gene Название: Stereochemical and Reactivity Studies of the [2 2], [2 4] and 1,3-dipolar Cycloadditions of Partially Fluorinated Allenes ISBN: 0530006316 ISBN-13(EAN): 9780530006314 Издательство: Неизвестно Рейтинг: Цена: 114030.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Abstract: Cycloadditions involving fluoroallenes are extremely useful mechanistic probes. Due to the high reactivity of these allenes and the small size of their fluorine substituents, cycloadditions of fluoroallenes are free from many of the ambiguities surrounding analogous studies by previous workers. Styrene and 1,1-difluoroallene, DFA, undergo clean reactions between 60o and 100oC to give good yields (approx. 60%) of two cylcloadducts: 2,2-difluoro-3-phenyl-1-methylenecyclobutane (major) and 3-phenyl-1-(difluoromethylene)cyclobutane (minor). Similar experiments comparing the reactions of p-nitro and p-methoxystyrene with the above results give relative reactivities of 2.1 and 1.3, respectively. The 2]2] cycloaddition of DFA with Z-β-deuteriostyrene gives the expected products in an 82:18 ratio with stereochemical ratios of 58:42 and 79:21, respectively, at 80oC. A mechanism involving two kinetically distinguishable diradicals is proposed to rationalize the results. The reaction of DFA with 1-cyanovinyl acetate, a "capto-dative" reagent is also studied and found to give results similar to the styrene reactions. N-Methyl, N-phenyl, and N-(2-naphthyl)-C-phenylnitrones undergo regiospecific C2-C3 dipolar cycloadditions with monofluoroallene, MFA, in nearly quantitative yields at 25oC. The average stereochemical ratio for the two 4-substituted isoxazolidines produced is 84:16 2% with the product from syn addition of MFA in excess. The stereochemical assignments of the products are made with the aid of difference nuclear Overhauser effect (NOE) experiments and an X-ray crystal structure. Extensive solvent and kinetic studies show that these are well-behaved second-order kinetic processes consistent with previously well-studied 1,3-dipolar cycloadditions. The reaction of MFA with diazomethane-d2 strongly favors the product from the syn addition (88:12 ratio), also. Consideration of transition-state dipole-dipole interactions and solvation phenomena show that the factors affecting the stereochemical outcome of all these 1,3-dipolar cycloadditions are extremely subtle. Finally, MFA undergoes Diels-Alder reactions with cyclopentadiene, butadiene, and furan to give a modest preference for the syn adduct (51:49, 59:41, and 63:37, respectively). The results are discussed in terms of a theoretical study done for MFA using INDO calculations. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Stereochemical and Reactivity Studies of the 2 2], 2 4] and 1,3-dipolar Cycloadditions of Partially Fluorinated Allenes" by Gene Ellis Wicks, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Автор: Treichel, Paul (university Of Wisconsin, Madison) Kotz, John (state University Of New York, Oneonta) Townsend, John (west Chester University Of Pennsy Название: Chemistry & chemical reactivity ISBN: 1337399078 ISBN-13(EAN): 9781337399074 Издательство: Cengage Learning Рейтинг: Цена: 85530.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Comprising over thirty chapters by a team of international contributors the Handbook covers the following central topics: the nature and normative importance of consent; paternalism; exploitation and coercion; privacy; sexual consent; consent and criminal law; informed consent; organ donation; clinical research; consent theory of political obligation; political authority and democratic authority.
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