organometallic modeling of the hydrodesulfurization and hydrodenitrogenation reactions catalysis by metal complexes

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Organometallic Modeling Of The Hydrodesulfurization And Hydrodenitrogenation Reactions

Author : Robert A. Sánchez-Delgado
ISBN : 9780306476198
Genre : Science
File Size : 20. 18 MB
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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.

Advances In Catalytic Activation Of Dioxygen By Metal Complexes

Author : László I. Simándi
ISBN : 9780306478161
Genre : Science
File Size : 84. 28 MB
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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.

Heterocycles From Transition Metal Catalysis

Author : András Kotschy
ISBN : 9781402036927
Genre : Science
File Size : 83. 21 MB
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"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.

Directory Of Graduate Research

Author : American Chemical Society. Committee on Professional Training
ISBN : UCSD:31822036045805
Genre : Biochemistry
File Size : 35. 48 MB
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Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada.

Transition Metal Sulphides

Author : Th. Weber
ISBN : 9789401735773
Genre : Science
File Size : 77. 66 MB
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Hydrotreating catalysis with transition metal sulphides is one of the most important areas of industrial heterogeneous catalysis. The present book deals with the chemical and catalytic aspects of transition metal sulphides, focusing on their use in hydrotreating catalysis. The book¿s 12 chapters present reviews of solid-state, coordination and organometallic chemistry, surface science and spectroscopic studies, quantum chemical calculations, catalytic studies with model and real catalysts, as well as refinery processes. A presentation of state-of-the-art background to pertinent work in the field. Can be used as an introduction to the chemical and catalytic properties of transition metal sulphides as well as an advanced level reference.

Hydrodesulfurization And Hydrodenitrogenation

Author : Toshiaki Kabe
ISBN : STANFORD:36105110179160
Genre : Technology & Engineering
File Size : 35. 34 MB
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Multiphase Homogeneous Catalysis

Author : Boy Cornils
ISBN : CHI:71056201
Genre : Science
File Size : 83. 30 MB
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This long-awaited two-volume handbook is the one-stop reference for everybody working in the field of multiphase catalysis. Covering academic and industrial applications, it will set the standard for future developments. All editors are top scientists with an industrial or academic background and have put together an international team to present every facet of this fascinating methodology -- including aqueous-phase catalysis, ionic liquids, fluorous-phase chemistry, supercritical solvents, and catalysis with polymer-bound ligands -- in a compact and competent manner. From the Contents: Organic Chemistry in Water Homogeneous Catalysis in the Aqueous Phase Technical Solutions Technical Applications of Supercritical Fluids Organic-Organic Biphasic Catalysis on a Laboratory Scale Enantioselective Catalysis in the Fluorous Phase Catalysis in Nonaqueous Ionic Liquids Commercial Applications and Aspects of Ionic Liquids Catalysis using Supercritical Solvents Soluble Polymer-Bound Catalysts Polymer-Bound Metal Complexes as Catalysts for C-C and C-N Coupling

Encyclopedia Of Inorganic Chemistry

Author : R. Bruce King
ISBN : 0471936200
Genre : Chemistry, Inorganic
File Size : 78. 77 MB
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Summaries Of Fy Research In The Chemical Sciences

Author :
ISBN : STANFORD:36105004129370
Genre : Chemistry
File Size : 54. 26 MB
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Fiscal Year 1986 Department Of Energy Authorization Basic Research Programs

Author : United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Development and Applications
ISBN : MINN:31951D008324099
Genre : Fossil fuels
File Size : 30. 64 MB
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