Download or read book Iron and Vanadium Complexes for the Catalytic Oxidation of Hydrocarbons written by Laura González Cuervo and published by . This book was released on 2003 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Iron and Vanadium Complexes for the Catalytic Oxidation of Hydrocarbons Chemical Catalysts and Biomimetic Models written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Le but de ce travail de thèse, était, d'une part, d'étudier l'activité catalytique des nouveaux complexes de vanadium pour la fonctionnalisation oxydante d'alcanes (le méthane inclus) et, d'autre part, d'élargir l'étude aux complexes de fer dans l'esprit de modeler des enzymes monooxygénases. Deux polyoxomolybdates contenant des atomes de vanadium(V) ont été testés comme catalyseurs pour l'oxydation des alcanes utilisant de l'eau oxygénée et de l'air comme oxydants. Cinq nouveaux complexes de vanadium(IV) et (V) ont été synthétisés et analysés par les techniques spectroscopiques courantes (IR, RMN, MS), par microanalyses, et ses structures ont été obtenues lors des analyses par diffraction des rayons X. Ces complexes ont été testés comme catalyseurs pour l'oxydation des alcanes en utilisant de l'eau oxygénée et de l'air comme oxydants. Un nouveau système catalytique, qui utilise l'acide peroxyacetique comme oxydant et un composé de vanadium comme catalyseur, a été testé avec succès dans l'oxydation des alcanes, et l'étude cinétique complète nous a conduit à proposer un mécanisme catalytique. Trois sels de fer(III) ont été testés comme catalyseurs pour l'oxydation des alcanes et une étude cinétique complète a suggéré que le mécanisme catalytique n'était pas le même pour les trois sels. Deux complexes dinucléaires de fer(III) contenant des ligands chelatants N- et N, O- ont été aussi testés avec succès comme catalyseurs pour l'oxydation des alcanes avec de l'eau oxygénée et l'air comme oxydants. Les résultats obtenus concluent que ces deux complexes peuvent être considérés comme modèles fonctionnels pour des enzymes monooxygénases, comme le méthane monooxygénase et l'hémérythrine.
Download or read book Iron and Vanadium Complexes for the Catalytic Oxydation of Hydrocarbons written by Laura González Cuervo and published by . This book was released on 2003 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vanadium and Iron Complexes for Catalytic Oxidation written by Alette Gerda Jeannet Ligtenbarg and published by . This book was released on 2001 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vanadium Catalysis written by Manas Sutradhar and published by Royal Society of Chemistry. This book was released on 2020-11-05 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vanadium is one of the more abundant elements in the Earth’s crust and exhibits a wide range of oxidation states in its compounds making it potentially a more sustainable and more economical choice as a catalyst than the noble metals. A wide variety of reactions have been found to be catalysed by homogeneous, supported and heterogeneous vanadium complexes and the number of applications is growing fast. Bringing together the research on the catalytic uses of this element into one essential resource, including theoretical perspectives on proposed mechanisms for vanadium catalysis and an overview of its relevance in biological processes, this book is a useful reference for industrial and academic chemists alike.
Download or read book Catalytic Oxidation of Hydrocarbons by Dinuclear Iron Complexes written by and published by . This book was released on 1992 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our efforts during the past eight months were directed towards characterizing synthetic complexes that model the electronic and reactivity properties of the active site of methane monooxygenase (MMO), a metalloenzyme found in methanotrophic bacteria responsible for the biological oxidation of methane to methanol. We have investigated the structural/electronic and reactivity properties of a series of dinuclear model complexes that can function as oxygen atom transfer catalysts. In particular, our studies focused on [Fe[sup 2+][sub 2](H[sub 2]Hbab)[sub 2](N-MeIm)[sub 2]], its DMF solvated form, [Fe[sup 2+][sub 2](H[sub 2]Hbab)[sub 2](DMF)[sub 2](MeIm)], and the mixed valent species [Fe[sup 2+]Fe[sup 3+](H[sub 2]Hbab)[sub 2](DMF)[sub 4]][sup +], (H[sub 4]Hbab = 1,2-bis(2-hydroxybenzamido) benzene). We have also examined [Fe[sup 3+][sub 2](H[sub 2]Hbab)[sub 2](DMF)[sub 4]][sup 2+], [Fe[sup 3+][sub 2](H[sub 2]Hbab)[sub 2](OMe)[sub 2]], and [mu]-oxo-[Fe[sup 3+][sub 2](H[sub 2]Hbab)[sub 2](DMF)[sub 2]], which are unable to act as oxygen atom transfer catalysts.
Download or read book Catalytic Oxidation of Hydrocarbons by Dinuclear Iron Complexes Progress Report written by and published by . This book was released on 1992 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our efforts during the past eight months were directed towards characterizing synthetic complexes that model the electronic and reactivity properties of the active site of methane monooxygenase (MMO), a metalloenzyme found in methanotrophic bacteria responsible for the biological oxidation of methane to methanol. We have investigated the structural/electronic and reactivity properties of a series of dinuclear model complexes that can function as oxygen atom transfer catalysts. In particular, our studies focused on [Fe{sup 2+}2(H2Hbab)2(N-MeIm)2], its DMF solvated form, [Fe{sup 2+}2(H2Hbab)2(DMF)2(MeIm)], and the mixed valent species [Fe{sup 2+}Fe{sup 3+}(H2Hbab)2(DMF)4], (H4Hbab = 1,2-bis(2-hydroxybenzamido) benzene). We have also examined [Fe{sup 3+}2(H2Hbab)2(DMF)4]{sup 2+}, [Fe{sup 3+}2(H2Hbab)2(OMe)2], and [mu]-oxo-[Fe{sup 3+}2(H2Hbab)2(DMF){sub 2]}, which are unable to act as oxygen atom transfer catalysts.
Download or read book Hydrocarbon Oxidation by Alkylperoxo Complexes of Tervalent Iron and Cobalt written by Cattien Van Nguyen and published by . This book was released on 1996 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficient and Selective Catalytic Oxidation of Small Hydrocarbons Using Iron Copper and Vanadium Oxide Nanocatalysts written by and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Catalytic Oxidation of Organic Compounds in the Vapor Phase written by Leroy Frank Marek and published by . This book was released on 1932 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomimetic Oxidations Catalyzed By Transition Metal Complexes written by Bernard Meunier and published by World Scientific. This book was released on 2000-03-08 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the classic work Metal-Catalyzed Oxidations of Organic Compounds (edited by R A Sheldon and J K Kochi, 1991), no book has been devoted to advances in the field of biomimetic oxidations, which was created nearly 18 years ago. This expanding research field is covered in this volume. All the different aspects of the modeling of oxidations catalyzed by metalloenzymes are dealt with.This invaluable book will be useful to postgraduates as well as researchers in academia and industry, and will also benefit second year university students.
Download or read book Gaseous Vanadium Vanadium Oxide and Hydroxide Clusters written by Sandra Feyel and published by Logos Verlag Berlin GmbH. This book was released on 2008 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work explores the reactivities of gaseous vanadium, vanadium-oxide, and oxovanadium-hydroxide clusters toward methanol and small hydrocarbons. Various means of mass-spectrometric techniques, isotopic labeling studies, infrared photodissociation spectroscopy, and complementary DFT-calculations are employed for this purpose. Additionally, the hydrogen-atom abstraction process from methane by polynuclear metal oxides is discussed. This work contributes to a better understanding of the metal-oxide cluster's catalytic activity on a molecular scale.
Download or read book Catalytic Activation of Dioxygen by Metal Complexes written by László I. Simándi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: The activation of dioxygen by metal ions has both synthetic potential and biological relevance. Dioxygen is the cleanest oxidant for use in emission-free technologies to minimize pollution of the environment. The book gives a survey of those catalyst systems based on metal complexes which have been discovered and studied in the last decade. They activate molecular oxygen and effect the oxidation of various organic compounds under mild conditions. Much of the recent progress is due to a search for biomimetic catalysts that would duplicate the action of metalloenzymes. Mechanistic aspects are emphasized throughout the book. An introductonary chapter reviews the chemistry of transition metal dioxygen complexes, which are usually the active intermediates in the catalytic reactions discussed. Separate chapters are devoted to oxidation of saturated, unsaturated and aromatic hydrocarbons, phenols, catechols, oxo-compounds, phosphorus, sulfur and nitrogen compounds.
Download or read book The Activation of Dioxygen and Homogeneous Catalytic Oxidation written by D.H.R. Barton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph consists of the proceedings of the Fifth International Symposium on the Activation of Dioxygen and Homogeneous Catalytic Oxidation, held in College Station, Texas, March 14-19, 1993. It contains an introductory chapter authored by Professors D. H. R. Barton and D. T. Sawyer, and twenty-nine chapters describing presentations by the plenary lecturers and invited speakers. One of the invited speakers, who could not submit a manuscript for reasons beyond his control, is represented by an abstract of his lecture. Also included are abstracts of forty-seven posters contributed by participants in the symposium. Readers who may wish to know more about the subjects presented in abstract form are invited to communicate directly with the authors of the abstracts. This is the fifth international symposium that has been held on this subject. The first was hosted by the CNRS, May 21-29, 1979, in Bendor, France (on the Island of Bandol). The second meeting was organized as a NATO workshop in Padova, Italy, June 24-27, 1984. This was followed by a meeting in Tsukuba, Japan, July 12-16, 1987. The fourth symposium was held at Balatonfured, Hungary, September 10-14, 1990. The sixth meeting is scheduled to take place in Delft, The Netherlands (late Spring, 1996); the organizer and host will be Professor R. A. Sheldon.
Download or read book Advances in Catalytic Activation of Dioxygen by Metal Complexes written by L. I. Simándi and published by Springer Science & Business Media. This book was released on 2003-01-31 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: The catalytic activation of dioxygen continues to attract interest both due to its biological importance and synthetic potential. Metalloenzymes play crucial roles in metabolism by living organisms. The modelling of metalloenzymes by biomimetic metal complexes helps the search for useful oxidation catalysts and the understanding of their mechanisms of operation. Dioxygen is also the oxidant of choice in emission-free technologies aimed at minimising pollution of the environment, in line with the green chemistry requirements. This volume is devoted to recent progress in the field of catalytic oxidations using ruthenium, copper, iron, gold, cobalt and other complexes. Products and mechanistic aspects are given special emphasis throughout the book.
Download or read book Vanadium and Some of Its Industrial Applications written by Jerome Alexander and published by . This book was released on 1929 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalytic Oxidation of Carboxylic Acids Using Iron III Complexes written by Adeline Fournier and published by . This book was released on 2004 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
