Download or read book Synthesis and Study of Some Group VIII Transition Metal Catalysts written by Richard Royce Schrock and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Group VIII IX Transition Metal Complexes and Their Application in C H Bond Activation and Hydrogen Transformation written by Hongmei Yuan and published by . This book was released on 2018 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A cobalt analogue of Cp*Co(PMe3)Me(OTf) (Cp* = 1, 2, 3, 4, 5 - pentamethylcyclopenta-dienyl, OTf = OSO2CF3), in Chapter 2, was attempted to be synthesized and studied for electrophilic C-H bond activation. Three new cobalt complexes Cp*Co(PMe3)(Me)2, Cp*Co(PMe3)(OTf)2 and Cp*Co(PMe3)(Me)(I) were synthesized. The 1H NMR spectrum showed a new material formed after mixing Cp*Co(PMe3)(Me)2 and Cp*Co(PMe3)(OTf)2 in 1:1 ratio. In Chapter 3, five carboxylate ligated iridium complexes (dmPhebox)Ir(O2CR)2(H2O) (R = -CH3(known compound), -CH2CH3, -CMe3, - CH2C6H5, -CH=CMe2) were designed and synthesized to understand the carboxylate ligand effects on the reactivity of the complex for alkane dehydrogenation. Results from the kinetic study showed that different R groups of the carboxylate iridium complexes can affect the reactivity with octane in the ??H elimination step. The rate constants for octane formation with different carboxylate ligands follow the order R = -CH=CMe2 > -CMe3 > -CH2CH3 > -CH3 > -CH2C6H5. In contrast, there is no significant effect of carboxylate ligand on the rate of the C-H activation step at 160 ʻC. These experimental results support the findings in the previously reported density functional theory (DFT) study of the (dmPhebox)Ir complex in alkane C-H activation. In Chapter 4,5 and 6, hydrogen transformation during the dehydrogenation and hydrogenation of N-heterocycles with a cobalt pincer catalyst, hydrogenation of alkenes with Fe(II) precursors, and hydrogenation of alcohols and dehydrogenation of ketones with a Cp*Rh(III) catalyst were investigated. The results of the acceptorless, reversible dehydrogenation and hydrogenation of N-heterocycles suggests a bifunctional dehydrogenation pathway and a non-bifunctional hydrogenation mechanism. The iron catalysts described in Chapter 5 operate via a metal-ligand cooperative pathway via a stepwise hydride transfer and then proton transfer mechanism. The Cp*Rh(III) catalysts in Chapter 6 decompose upon heating to give nanoparticles."--Pages xi-xii.
Download or read book Transition Metal Dinitrogen Complexes written by Yoshiaki Nishibayashi and published by John Wiley & Sons. This book was released on 2019-05-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive book that explores nitrogen fixation by using transition metal-dinitrogen complexes Nitrogen fixation is one of the most prominent fields of research in chemistry. This book puts the focus on the development of catalytic ammonia formation from nitrogen gas under ambient reaction conditions that has been recently repowered by some research groups. With contributions from noted experts in the field, Transition Metal-Dinitrogen Complexes offers an important guide and comprehensive resource to the most recent research and developments on the topic of nitrogen fixation by using transition metal-dinitrogen. The book is filled with the information needed to understand the synthesis of transition metal-dinitrogen complexes and their reactivity. This important book: -Offers a resource for understanding nitrogen fixation chemistry that is essential for explosives, pharmaceuticals, dyes, and all forms of life -Includes the information needed for anyone interested in the field of nitrogen fixation by using transition metal-dinitrogen complexes -Contains state-of-the-art research on synthesis of transition metal-dinitrogen complexes and their reactivity in nitrogen fixation -Incorporates contributions from well-known specialists and experts with an editor who is an innovator in the field of dinitrogen chemistry Written for chemists and scientists with an interest in nitrogen fixation, Transition Metal-Dinitrogen Complexes is a must-have resource to the burgeoning field of nitrogen fixation by using transition metal-dinitrogen complexes.
Download or read book Application of Transition Metal Catalysts in Organic Synthesis written by L. Brandsma and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homogeneous catalysis is an important strategy for the synthesis of high-valued chemicals. L. Brandsma has carefully selected and checked the experimental procedures illustrating the catalytic use of copper, nickel, and palladium compounds in organic synthesis. All procedures are on a preparative scale, make economic use of solvents and catalysts, avoid toxic substances and have high yields.
Download or read book Synthesis and Applications of Group VI and VIII Metal II Hydrides for Homogeneous Electrocatalysis written by Keith Armstrong and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: My doctoral work focused on developing and improving electrocatalytic systems for the reduction or oxidation of small molecules, all of which featured transition metal hydrides as key catalytic intermediates. This simple class of reactions has powerful applications, particularly for energy storage and for mild, selective organic transformations. My research interests centered on the capability of detailed mechanistic understanding to improve processes with real-world impacts. Such insight has enabled me and my coworkers to contribute to the understanding of electrocatalyst design principles in the fuel cell and catalysis communities.
Download or read book Sustainable Synthesis of Pharmaceuticals written by Mariette M. Pereira and published by Royal Society of Chemistry. This book was released on 2018-03-26 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Aspects of Transition Metal Catalysis written by Gernot Frenking and published by Springer Science & Business Media. This book was released on 2005-06-23 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal catalysis belongs to the most important chemical research areas because a ubiquitous number of chemical reactions are catalyzed by transition metal compounds. Many efforts are being made by industry and academia to find new and more efficient catalysts for chemical processes. Transition metals play a prominent role in catalytic research because they have been proven to show an enormous diversity in lowering the activation barrier for chemical reactions. For many years, the search for new catalysts was carried out by trial and error, which was costly and time consuming. The understanding of the mechanism of the catalytic process is often not very advanced because it is difficult to study the elementary steps of the catalysis with experimental techniques. The development of modern quantum chemical methods for calculating possible intermediates and transition states was a breakthrough in gaining an understanding of the reaction pathways of transition metal catalyzed reactions. This volume, organized into eight chapters written by leading scientists in the field, illustrates the progress made during the last decade. The reader will obtain a deep insight into the present state of quantum chemical research in transition metal catalysis.
Download or read book Inorganic Reactions and Methods The Formation of Bonds to Transition and Inner Transition Metals written by A. P. Hagen and published by John Wiley & Sons. This book was released on 2009-09-17 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boasting numerous industrial applications, inorganic chemistry forms the basis for research into new materials and bioinorganic compounds such as calcium that act as biological catalysts. Now complete, this highly acclaimed series presents current knowledge in all areas of inorganic chemistry, including chemistry of the elements; organometallic, polymeric and solid-state materials; and compounds relevant to bioinorganic chemistry.
Download or read book Pincer Metal Complexes written by Akshai Kumar and published by Elsevier. This book was released on 2021-11-11 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pincer-Metal Complexes: Applications in Catalytic Dehydrogenation Chemistry provides an overview of pincer-metal catalytic systems that transform hydrocarbons and their derivatives from an synthetic and mechanistic point-of-view. This book provides thorough coverage of the operating mechanisms and dehydrogenation catalyst compatibility in both functionalized and unfunctionalized hydrocarbon systems. In addition, it includes success stories of pincer-metal systems, as well as current and future challenges. The book is an ideal reference for researchers practicing synthetic organic chemistry, inorganic chemistry, organometallic chemistry and catalysis in academia and industry. In recent years there has been a surge in the research on hydrocarbon dehydrogenation catalytic systems that are compatible with polar substituents. This helps facilitate formulation of tandem processes that are not limited to hydrocarbon transformation but also to hydrocarbon functionalization in a single pot. - Covers applications of pincer-metal complexes in organic transformations - Includes pincer-group 8 and 9 metal complexes for alkane dehydrogenations - Features a discussion of pincer-metal complexes for the dehydrogenation of functionalized hydrocarbons and electro-catalytic transformations
Download or read book Metals and Non metals written by Navjeet Kaur and published by CRC Press. This book was released on 2020-01-28 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of new processes that avoid the use of toxic reagents has been the focus of intense research of late. Catalysis by metals and non-metals offers diverse opportunities for the development of new organic reactions with promising range of selectivities—chemoselectivity, regioselectivity, diastereoselectivity, and enantioselectivity. Furthermore, these transformations frequently occur under mild conditions, tolerate a broad array of functional groups, and proceed with high stereoselectivity. The area of catalysis is sometimes referred to as a ‘foundational pillar’ of green chemistry. Catalytic reactions often reduce energy requirements and decrease separations because of increased selectivity; they are also capable of permitting the use of renewable feedstocks of less toxic reagents or minimizing the quantities of reagents needed. New catalytic organic synthesis methodologies have, thus, offered several possibilities for considerable improvement in the eco-compatibility of fine chemical production. Hence, these catalytic methodologies have emerged as powerful tools for the efficient and chemoselective synthesis of heterocyclic molecules. Key Features: Presents the synthesis of different five-membered heterocycles. Contains the most up-to-date information in this fast-moving field. Covers novel catalytic approaches used in the study and application of catalysts in synthetic organic reactions. Presents new methodologies for the synthesis of heterocycles.
Download or read book The Study and Synthesis of Group 4 Transition Metal Complexes in Ziegler Natta Catalysis written by Jonathan P. Corden and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Reactivity of Transition Metal and Main Group Hydrogenation Catalysts written by Eliar Mosaferi and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its discovery by Paul Sabatier, catalytic hydrogenation of unsaturated substrates has become the single largest industrial process to date and encompasses the production of many products, such as foods, agrochemicals, pharmaceuticals, and materials. Over the last century research in the area has predominantly focused on the use of transition metals such as palladium, platinum, rhodium, and ruthenium to develop heterogeneous and homogeneous hydrogenation catalysts. The research presented herein focuses on the use of ruthenium complexes bearing electron-rich phosphorylated N-heterocyclic carbene ligands as well as the development of main-group compounds for frustrated Lewis pair catalysis. Complexes [Ru(0)LL'2(CO)] and [RuHL2(CO)][Cl], where L = N-phosphorylated N-heterocyclic carbene (NHCP), and L' = triphenylphosphine, were prepared as a mixture by treatment of RuHCl(CO)(PPh3)3 with excess NHCP carbene and separated by crystallization. The zero-valent complex [Ru(0)LL'2(CO)] was shown to undergo rapid oxidative addition to the corresponding Ru(II) species when treated with small molecules to afford complexes of the general type [RuHXLL'(CO)], where L = N-phosphorylated N-heterocyclic carbene, L = triphenylphosphine, and X = H, SiPh3, or Si(H)Ph2. The reaction of NHCP carbene with [RuCl2(p-cymene)]2 resulted in the isolation of the piano-stool half-sandwich complex [RuCl2(p-cymene)(NHCP)] as well as an unusual arene-activated species. The half-sandwich complex was treated with a halide-abstracting agent to afford the cationic compound [RuCl(p-cymene)(NHCP)]+, which was shown to rapidly undergo dihydrogen activation via an outer-sphere mechanism involving the phosphine appended to the carbene ligand. To demonstrate the utility of main-group catalysts, trityl cations of the form [(4-MeO-C6H4)xCPh3-x][BR4] were synthesized, where x = 1 and 3, and R = F, or C6F5. Treatment of equimolar solutions of [(4-MeO-C6H4)CPh2][BF4] and sterically encumbered phosphines with dihydrogen resulted in activation of dihydrogen but no catalytic activity was observed. The air- and moisture-stable [(4-MeO-C6H4)CPh2][BF4] was shown to be a potent Lewis acid catalyst in the hydrothiolation of olefins.
Download or read book Organocatalytic Enantioselective Conjugate Addition Reactions written by Dolores Badia and published by Royal Society of Chemistry. This book was released on 2010 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, unique in its field, is a comprehensive description of all the methodologies reported for carrying out conjugate addition reactions in a stereoselective way, using small chiral organic molecules as catalysts (organocatalysts). In the last 3-4 years, this has been a rapidly growing field in organic chemistry, and many papers have appeared reporting excellent protocols for carrying out these highly efficient transformations that compete well with other classical approachse using transition metal catalysts. A particularly attractive feature of this transformation relies upon the fact that the conjugate addition (Michael and Hetero-Michael reactions) is an extraoridinarily effective means to initiate cascade processes which result in the formation of complex molecules from very small and simple starting blocks. The book, written by noted experts, covers all recent advances in this not topic, and provides a good state-of-the-art review for organic chemists working in this field and all those who wish to start projects in this area. The Series is intended to provide an accessible reference for postgraduates and industrialists working in the field of catalysis and its applications. Books will be produced either as monographs or reference handbooks. The Series will cover research developments and applications of catalysis, in both academia and industry.
Download or read book Supported Metals In Catalysis 2nd Edition written by James Arthur Anderson and published by World Scientific. This book was released on 2011-12-23 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from experts in supported metal catalysis from both the industry and academia, this book presents the latest developments in characterization and application of supported metals in heterogeneous catalysis. In addition to thorough and updated coverage of the traditional aspects of heterogeneous catalysis such as preparation, characterization and use in well-established technologies such as vehicle emission control, the book also includes emerging areas where supported metal catalysis will make significant contributions to future developments, such as fuel cells and fine chemicals synthesis.The second edition of Supported Metals in Catalysis comes complete with new and updated chapters containing important summaries of research in a rapidly evolving field. Very few other books deal with this highly pertinent subject matter and, as such, it is a must-have for anyone working in the field of heterogeneous catalysis./a
Download or read book Synthesis and Characterization of Group V Metal Carbide and Nitride Catalysts written by Heock-Hoi Kwon and published by . This book was released on 1998 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Inorganic Chemistry II written by and published by Newnes. This book was released on 2013-07-23 with total page 7694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Inorganic Chemistry II, Nine Volume Set reviews and examines topics of relevance to today’s inorganic chemists. Covering more interdisciplinary and high impact areas, Comprehensive Inorganic Chemistry II includes biological inorganic chemistry, solid state chemistry, materials chemistry, and nanoscience. The work is designed to follow on, with a different viewpoint and format, from our 1973 work, Comprehensive Inorganic Chemistry, edited by Bailar, Emeléus, Nyholm, and Trotman-Dickenson, which has received over 2,000 citations. The new work will also complement other recent Elsevier works in this area, Comprehensive Coordination Chemistry and Comprehensive Organometallic Chemistry, to form a trio of works covering the whole of modern inorganic chemistry. Chapters are designed to provide a valuable, long-standing scientific resource for both advanced students new to an area and researchers who need further background or answers to a particular problem on the elements, their compounds, or applications. Chapters are written by teams of leading experts, under the guidance of the Volume Editors and the Editors-in-Chief. The articles are written at a level that allows undergraduate students to understand the material, while providing active researchers with a ready reference resource for information in the field. The chapters will not provide basic data on the elements, which is available from many sources (and the original work), but instead concentrate on applications of the elements and their compounds. Provides a comprehensive review which serves to put many advances in perspective and allows the reader to make connections to related fields, such as: biological inorganic chemistry, materials chemistry, solid state chemistry and nanoscience Inorganic chemistry is rapidly developing, which brings about the need for a reference resource such as this that summarise recent developments and simultaneously provide background information Forms the new definitive source for researchers interested in elements and their applications; completely replacing the highly cited first edition, which published in 1973
Download or read book Direct Synthesis of Metal Complexes written by B.I. Kharisov and published by Elsevier. This book was released on 2018-04-19 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct Synthesis of Metal Complexes provides in-depth coverage of the direct synthesis of coordination and organometallic compounds. The work is primarily organized by methods, but also covers highly relevant complexes, such as metal-polymer coordination compounds. This updated reference discusses recent developments in cryosynthesis, electrosynthesis, and tribosynthesis (popular as it doesn't require organic solvents), with special attention paid to 'greener' methodologies and approaches. Additionally, the book describes physical methods of zero-valent metal interaction with organic matter, including sputtering, ultrasonic treatment and synthesis in ionic liquids. The book presents completely new content as a follow-up to the 1999 Elsevier Science publication Direct Synthesis of Coordination and Organometallic Compounds that was edited by Dr. Garnovskii and Dr. Kharisov. - Covers current methods and techniques of metal interactions with organic media leading to metal chelates, adducts, di- and polymetallic complexes, metal-containing macrocycles, supported coordination compounds (i.e., metal complexes on carbon nanotubes), and more - Describes reactivities of distinct forms of elemental metals (powders, sheets, nanoparticles (including a host of less-common metal nanostructures) with organic phase (liquid, solid and gaseous) and water - Includes experimental procedures, with examples of direct synthesis, at the end of each chapter
