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Organometallic Modeling Of The Hydrodesulfurization And Hydrodenitrogenation Reactions
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Author :Robert A. Sánchez-Delgado Publisher :Springer Science & Business Media ISBN 13 :0306476193 Total Pages :223 pages Book Rating :4.3/5 (64 download)
Book Synopsis Organometallic Modeling of the Hydrodesulfurization and Hydrodenitrogenation Reactions by : Robert A. Sánchez-Delgado
Download or read book Organometallic Modeling of the Hydrodesulfurization and Hydrodenitrogenation Reactions written by Robert A. Sánchez-Delgado and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fields of hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) continue to attract the attention of researchers in the various disciplines connected to these fascinating problems that represent two of the key outstanding chemical challenges for the petroleum refining industry in view of their very strong environmental and commercial implications. One area that has flourished impressively over the last 15 years is the organometallic chemistry of thiophenes and other related sulfur-containing molecules. This has become a powerful method for modeling numerous surface species and reactions implicated in HDS schemes, and nowadays it represents an attractive complement to the standard procedures of surface chemistry and heterogeneous catalysis, for understanding the complex reaction mechanisms involved in this process. Similar developments have begun to appear in connection with HDN mechanisms, although in a much more modest scale and depth. Some years ago when, encouraged by Prof. B. R. James, this book was planned, several excellent reviews and monographs treating different aspects of HDS were already available including some on the subject of organometallic models. However, it seemed appropriate to try to summarize the most striking features of this chemistry in an updated and systematic way, and inasmuch as possible in connection with the common knowledge and beliefs of the mechanisms of heterogeneous HDS catalysis. Hopefully, this attempt to build some conceptual bridges between these two traditionally separated areas of chemistry has met with some success.
Book Synopsis Computational Modeling of Homogeneous Catalysis by : Feliu Maseras
Download or read book Computational Modeling of Homogeneous Catalysis written by Feliu Maseras and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results on a wide array of catalytic processes are collected in this volume. The book illustrates the importance of computational modelling in homogeneous catalysis by providing up-to-date reviews of its application to a variety of reactions of industrial interest.
Book Synopsis Applying Nanotechnology to the Desulfurization Process in Petroleum Engineering by : Saleh, Tawfik A.
Download or read book Applying Nanotechnology to the Desulfurization Process in Petroleum Engineering written by Saleh, Tawfik A. and published by IGI Global. This book was released on 2015-10-27 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: As regulations push the fossil fuel industry toward increasing standards of eco-friendliness and environmental sustainability, desulfurization (the removal of SO2 from industrial waste byproducts) presents a new and unique challenge that current technology is not equipped to address. Advances in nanotechnology offer exciting new opportunities poised to revolutionize desulfurization processes. Applying Nanotechnology to the Desulfurization Process in Petroleum Engineering explores recent developments in the field, including the use of nanomaterials for biodesulfurization and hydrodesulfurization. The timely research presented in this volume targets an audience of engineers, researchers, educators as well as students at the undergraduate and post-graduate levels.
Author :David J. Cole-Hamilton Publisher :Springer Science & Business Media ISBN 13 :9781402040863 Total Pages :270 pages Book Rating :4.0/5 (48 download)
Book Synopsis Catalyst Separation, Recovery and Recycling by : David J. Cole-Hamilton
Download or read book Catalyst Separation, Recovery and Recycling written by David J. Cole-Hamilton and published by Springer Science & Business Media. This book was released on 2006-01-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book looks at new ways of tackling the problem of separating reaction products from homogeneous catalytic solutions. The new processes involve low leaching supported catalysts, soluble supports such as polymers and dendrimers and unusual solvents such as water, fluorinated organics, ionic liquids and supercritical fluids. The advantages of the different possibilities are discussed alongside suggestions for further research that will be required for commercialisation. Unlike other books, in addition to the chemistry involved, the book looks at the process design that would be required to bring the new approaches to fruition. Comparisons are given with existing processes that have already been successfully applied and examples are given where these approaches are not suitable. The book includes: - New processes for the separation of products from solutions containing homogeneous catalysts - Catalysts on insoluble or soluble supports – fixed bed catalysts - continuous flow or ultrafiltration - Biphasic systems: water - organic, fluorous - organic, ionic liquid – organic, supercritical fluids (monophasic or biphasic with water, organic or ionic liquid) - Comparisons with current processes involving atmospheric or low temperature distillation - Consideration of Chemistry and Process Design - Advantages and disadvantages of each process exposed - Consideration of what else is need for commercialisation
Book Synopsis Hydrodesulfurization and Hydrodenitrogenation by : Toshiaki Kabe
Download or read book Hydrodesulfurization and Hydrodenitrogenation written by Toshiaki Kabe and published by Wiley-VCH Verlag GmbH. This book was released on 1999 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterocycles from Transition Metal Catalysis by : András Kotschy
Download or read book Heterocycles from Transition Metal Catalysis written by András Kotschy and published by Springer Science & Business Media. This book was released on 2005-09-30 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Heterocycles from Transition Metal Catalysis: Formation and Functionalization" provides a concise summary of the prominent role of late transition metal (palladium, nickel, copper) catalysed processes in the synthesis and functionalization of heterocyclic systems. It gives an introduction to catalytic transformations, an overview of the most important reaction types, and presents synthetically useful catalytic processes classified by the target system and the type of transformation. The book provides a representative selection of transition metal catalysed reactions transformations that are relevant in heterocyclic chemistry. In this way, the authors present a useful resource for members of the academic community looking for a textbook as well as industrial chemists in search of a reference book. This book will be an invaluable resource for synthetic chemists, medicinal chemists, and those more generally interested in applied catalysis.
Book Synopsis Advances in Catalytic Activation of Dioxygen by Metal Complexes by : László I. Simándi
Download or read book Advances in Catalytic Activation of Dioxygen by Metal Complexes written by László I. Simándi and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of dioxygen activation and homogeneous catalytic oxidation by metal complexes has been in the focus of attention over the last 20 years. The widespread interest is illustrated by its recurring presence among the sessions and subject areas of important international conferences on various aspects of bioinorganic and coordination chemistry as well as catalysis. The most prominent examples are ICCC, ICBIC, EUROBIC, ISHC, and of course the ADHOC series of meetings focusing on the subject itself. Similarly, the number of original and review papers devoted to various aspects of dioxygen activation are on the rise. This trend is due obviously to the relevance of catalytic oxidation to biological processes such as dioxygen transport, and the action of oxygenase and oxidase enzymes related to metabolism. The structural and functional modeling of metalloenzymes, particularly of those containing iron and copper, by means of low-molecular complexes of iron, copper, ruthenium, cobalt, manganese, etc., have provided a wealth of indirect information helping to understand how the active centers of metalloenzymes may operate. The knowledge gained from the study of metalloenzyme models is also applicable in the design of transition metal complexes as catalytsts for specific reactions. This approach has come to be known as biomimetic or bioinspired catalysis and continues to be a fruitful and expanding area of research.
Book Synopsis Handbook of Chalcogen Chemistry by : Francesco A. Devillanova
Download or read book Handbook of Chalcogen Chemistry written by Francesco A. Devillanova and published by Royal Society of Chemistry. This book was released on 2007 with total page 889 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview of the developments on the chemistry of the chalcogen group elements (S, Se and Te). Organised into two parts, this book deals systematically with the chemistry of chalcogens in relation to other group elements in the periodic table, and also includes an overview of metal-chalcogenides and metal-polychalcogenides.
Book Synopsis Handbook of Chalcogen Chemistry by : Francesco Devillanova
Download or read book Handbook of Chalcogen Chemistry written by Francesco Devillanova and published by Royal Society of Chemistry. This book was released on 2013-07-25 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Chalcogen Chemistry: New Perspectives in Sulfur, Selenium and Tellurium provides an overview of recent developments, particularly from the last decade, on the chemistry of the chalcogen group elements (S, Se and Te). While up to a few decades ago, chalcogen chemistry was mainly centred on sulphur, in recent years the research based on Se and Te has increased dramatically, and has created huge scope for the use of compounds based on this type of chemistry. The Handbook is organised into two parts, the first of which deals systematically with the chemistry of chalcogens in relation to other group elements in the periodic table. It also includes an overview of metal-chalcogenides and metal-polychalcogenides. The second part reflects the interdisciplinary nature of chalcogen chemistry and focuses on biological, materials and supramolecular aspects of the field. This Handbook gives a comprehensive overview on recent developments over the last decade and is ideal for researchers in the field.
Book Synopsis Studying Complex Surface Dynamical Systems Using Helium-3 Spin-Echo Spectroscopy by : Barbara A. J. Lechner
Download or read book Studying Complex Surface Dynamical Systems Using Helium-3 Spin-Echo Spectroscopy written by Barbara A. J. Lechner and published by Springer Science & Business. This book was released on 2014-04-23 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical reactions and growth processes on surfaces depend on the diffusion and re-orientation of the adsorbate molecules. A fundamental understanding of the forces guiding surface motion is thus of utmost importance for the advancement of many fields of science and technology. To date, our understanding of the principles underlying surface dynamics remains extremely limited, due to the difficulties involved in measuring these processes experimentally. The helium-3 spin-echo (HeSE) technique is uniquely capable of probing such surface dynamical phenomena. The present thesis extends the field of application of HeSE from atomic and small molecular systems to more complex systems. Improvements to the supersonic helium beam source, a key component of the spectrometer, as well as a detailed investigation of a range of five-membered aromatic adsorbate species are presented. The thesis provides a comprehensive description of many aspects of the HeSE method - instrumentation, measurement and data analysis - and as such offers a valuable introduction for newcomers to the field.
Book Synopsis Comprehensive Organometallic Chemistry III by : D. M. P. Mingos
Download or read book Comprehensive Organometallic Chemistry III written by D. M. P. Mingos and published by . This book was released on 2006-12-26 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Organometallic Chemistry, (COMC-III), Third Edition, 13 Volume Set is aimed at the specialist and non-specialist alike. It covers the major developments in the field in a carefully presented way with extensive cross-references. COMC-III provides a clear and comprehensive overview of developments since 1993 and attempts to predict trends in the field over the next ten years. Applications of organometallic chemistry continue to expand and this has been reflected by the significant increase in the number of volumes devoted to applications in COMC-III. Organic chemists have edited the volumes on organometallic chemistry towards organic synthesis - this is now organized by reaction type so as to be readily accessible to the organic community. Like its predecessors, COMC (1982) and COMC-II (1995), this new work is the essential reference text for any chemist or technologist who needs to use or apply organometallic compounds. Also available online via ScienceDirect (2006) - featuring extensive browsing, searching, and internal cross-referencing between articles in the work, plus dynamic linking to journal articles and abstract databases, making navigation flexible and easy. For more information, pricing options and availability visit www.info.sciencedirect.com. Presents a comprehensive overview of the major developments in the field since 1993 providing general and significant insights Highlights the expansion of applications in organometallic chemistry with a strong organic synthesis focus Provides a structured first point of entry to the key literature and background material for those planning research, teaching and writing about the area
Book Synopsis Molecular Metal-Metal Bonds by : Stephen T. Liddle
Download or read book Molecular Metal-Metal Bonds written by Stephen T. Liddle and published by John Wiley & Sons. This book was released on 2016-03-16 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematically covering all the latest developments in the field, this is a comprehensive and handy introduction to metal-metal bonding. The chapters follow a uniform, coherent structure for a clear overview, allowing readers easy access to the information. The text covers such topics as synthesis, properties, structures, notable features, reactivity and examples of applications of the most important compounds in each group with metal-metal bonding throughout the periodic table. With its general remarks at the beginning of each chapter, this is a must-have reference for all molecular inorganic chemists, including PhD students and postdocs, as well as more experienced researchers.
Book Synopsis Modeling Hydrodesulfurization Catalysis (HDS) by Solid State Synthesis, Homogeneous Desulfurization and Heterogeneous Probe Reactions by : Keenan Edward Dungey
Download or read book Modeling Hydrodesulfurization Catalysis (HDS) by Solid State Synthesis, Homogeneous Desulfurization and Heterogeneous Probe Reactions written by Keenan Edward Dungey and published by . This book was released on 1998 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodesulfurization Modeling with Iridium, Rhodium, and Nickel Hydrides by : Matthew Robert Grochowski
Download or read book Hydrodesulfurization Modeling with Iridium, Rhodium, and Nickel Hydrides written by Matthew Robert Grochowski and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reaction of [... characters removed] with 2-methylthiophene and 2,5-dimethylthiophene at 120°C in the presence of H2 results in the cleavage of the thiophene carbon-sulfur bond(s). In both cases the thiophenes are ring opened and hydrogenated resulting in dinuclear Ir complexes with bridging thiolates. The primary product in the reaction involving 2.5-dimethylthiophene is [... characters removed]. This product has been characterized and is present in diastereomeric pairs. Reaction with 2-methylthiophene produces a complex mixture consisting of five products. The product distribution consists of mono and di-substituted bridging thiolate products three of which have been structurally characterized by single-crystal X-ray diffraction. Independent synthesis of each of these products has been performed, and characterization of the reaction mixture has been accomplished by 1H and 13C NMR spectroscopies, as well as by ESI-MS and elemental analysis. Reaction with 2-acetylthiophene showed very similar reactivity; an X-ray structure confirmed the nature of the diastereomeric pairs present. The processes of C-C and C-S bond cleavage of 2-cyanothiophene have been studied with the homogeneous organometallic compound [Ni(dippe)H]2. Reaction at room temperature resulted in cleavage of the nitrile substituted C-S bond to give the Ni-metallacycle complex (dippe)Ni(K2-S, C-SCH=CHCH=C(CN)), which has been fully characterized by NMR spectroscopy and X-ray diffraction. Conversion to the C-CN cleavage product (dippe)Ni(CN)(2-thiophenyl) occurred when the solution was heated to 85°C. On closer inspection four other intermediates were observed by 31P NMR spectroscopy at -60°C. Structures for the intermediates were elucidated through a combination of independent synthesis, theoretical calculations, chemical characterization, and experimental precedent. A kinetic product (dippe)Ni(K2-S, C-SC(CN)=CHCH=CH) was formed from cleavage of the non-substituted C-S bond, as well as a [... characters removed], and a dinuclear mixed Ni(0)-Ni(II) product. The unusual lithium coordinated complex [... characters removed] was synthesized and characterized by NMR spectroscopy and X-ray crystallography. The [... characters removed] and LiBEt3H moieties are bound together through lithium. Bonding interactions occur between the lithium and the metal hydrides, as well as the lithium and the B-H bond of BEt3H. Formation of the complex is highly solvent dependent and may be part of a general bonding phenomenon between borohydrides and metal hydride complexes. The rhodium dimer [... characters removed] reacted with 4-methyldibenzothiophene to form the C-S cleavage product [... characters removed], which has been fully characterized by NMR spectroscopy (1H, 31P, and 13C), elemental analysis, APCI-MS, and X-ray diffraction. The crystal structure shows that hydrogenolysis of the C-S bond occurs exclusively from the unhindered side of 4-MeDBT. [... characters removed] also reacts in an analogous manner with 4,6-dimethyldibenzothiophene to form [... characters removed] which required more vigorous reaction conditions than those found for the 4-MeDBT, has been characterized by NMR spectroscopy (1H, 31P, and 13C), APCI-MS, and X-ray diffraction. The x-ray structure is the first known x-ray structure obtained of a C-S activated 4,6-Me2DBT metal complex showing complete C-S bond cleavage. The complex [(dippe)Rh(Mu-Cl)]2 was reduced with potassium metal to produce the highly reactive Rh( -1) species K[(dippe)Rh(THF)2], which was characterized by NMR spectroscopy (31P, 1H) and IR spectroscopy after forming the derivative K[(dippe)Rh(CO)2]. The derivative displayed fluxional behavior by the dippe ligand, as observed by 31P NMR spectroscopy, an unusual occurrence for this type of complex. The C-CN bond of benzonitrile was cleaved by oxidative addition when it was reacted stoichometrically with K[(dippe)Rh(CO)2], to form the anionic Rh(I) complex K[(dippe)Rh(CN)(Ph)]. This complex has been characterized by NMR spectroscopy (31P, 1H, 13C), and the use of 13CN labeled benzonitrile was instrumental in the characterization."--Leaves v-vii
Book Synopsis Organic Reaction Mechanisms 2015 by : A. C. Knipe
Download or read book Organic Reaction Mechanisms 2015 written by A. C. Knipe and published by John Wiley & Sons. This book was released on 2019-02-20 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic Reaction Mechanisms 2015, the 51st annual volume in this highly successful and unique series, surveys research on organic reaction mechanisms described in the available literature dated 2015. The following classes of organic reaction mechanisms are comprehensively reviewed: Reaction of Aldehydes and Ketones and their Derivatives Reactions of Carboxylic, Phosphoric, and Sulfonic Acids and their Derivatives Oxidation and Reduction Carbenes and Nitrenes Nucleophilic Aromatic Substitution Electrophilic Aromatic Substitution Carbocations Nucleophilic Aliphatic Substitution Carbanions and Electrophilic Aliphatic Substitution Elimination Reactions Polar Addition Reactions Cycloaddition Reactions Molecular Rearrangements An experienced team of authors compile these reviews every year, so that the reader can rely on a continuing quality of selection and presentation.
Book Synopsis The Handbook of Homogeneous Hydrogenation by : Johannes G. de Vries
Download or read book The Handbook of Homogeneous Hydrogenation written by Johannes G. de Vries and published by . This book was released on 2007 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Dihydrogen and s-Bond Complexes by : Gregory J. Kubas
Download or read book Metal Dihydrogen and s-Bond Complexes written by Gregory J. Kubas and published by Springer Science & Business Media. This book was released on 2001-08-31 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to R.H. Crabtree, Metal Dihydrogen and sigma-Bond Complexes is described as `the definitive account of twentieth-century work in the area of sigma complexation'. It covers not only Kubas' discovery of dihydrogen coordination and the study of its structure and general properties but also discusses both the theoretical beliefs and experimental results of bonding and activation of dihydrogen on metal centers and the coordination and activation of C-H, B-H, X-H, and X-Y bonds, giving an overview of `one of the hottest areas in chemistry'.
