Coordination chemistry and catalysis at iron

Coordination chemistry and catalysis at iron PDF Author: Guanghua Jin
Publisher:
ISBN:
Category :
Languages : fr
Pages : 204

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Book Description
L'utilisation du fer en chimie de coordination et en catalyse suscite un intérêt croissant de par son abondance et sa faible toxicité. Dans le premier chapitre, une étude bibliographique présente deux domaines d'applications du fer : i) l'utilisation de complexes de fer comportant des ligands " non innocent " pour différentes applications en catalyse, et ii) l'utilisation de complexes de fer pour des transformations stœchiométriques et catalytiques du CO2. Dans le chapitre 2, la synthèse et la caractérisation de complexes de fer portant un ligand coopératif non-innocent sont présentées. Le composé hautement réactif [Fe(N(TMS)2)2] a été choisi comme précurseur pour l'étude de la coordination du ligand bis(picolyl)phosphine dans des conditions douces. Une famille de complexes mono- et di-nucléaires de fer a été isolée et le comportement " non-innocent " du ligand a été mis en évidence. La combinaison de plusieurs techniques : diffraction des rayons X, RMN (en solution et à l'état solide), RPE, Mössbauer et spectroscopie infrarouge a permis de complètement caractériser à la fois les complexes diamagnétiques mais aussi paramagnétiques. Le chapitre 3 se concentre sur la transformation de CO2 par un système catalytique efficace au fer. Les complexes dihydrure de fer [Fe(H)2(diphosphine)2] catalysent la fonctionnalisation réductrice du CO2 dans des conditions douces. Dans ce système, la première étape concerne la réduction catalytique du CO2 par des hydroboranes donnant un composé bis(boryl)acetal. Via une stratégie " un pot, deux étapes " l'intermédiaire acétal est ensuite utilisé comme source de méthylène et est fonctionnalisé pour donner une série de composés organiques contenant non seulement des liaisons C-N mais aussi des liaisons C-O, C-S et C-C avec de bons à très bons rendements.

Coordination chemistry and catalysis at iron

Coordination chemistry and catalysis at iron PDF Author: Guanghua Jin
Publisher:
ISBN:
Category :
Languages : fr
Pages : 204

Get Book Here

Book Description
L'utilisation du fer en chimie de coordination et en catalyse suscite un intérêt croissant de par son abondance et sa faible toxicité. Dans le premier chapitre, une étude bibliographique présente deux domaines d'applications du fer : i) l'utilisation de complexes de fer comportant des ligands " non innocent " pour différentes applications en catalyse, et ii) l'utilisation de complexes de fer pour des transformations stœchiométriques et catalytiques du CO2. Dans le chapitre 2, la synthèse et la caractérisation de complexes de fer portant un ligand coopératif non-innocent sont présentées. Le composé hautement réactif [Fe(N(TMS)2)2] a été choisi comme précurseur pour l'étude de la coordination du ligand bis(picolyl)phosphine dans des conditions douces. Une famille de complexes mono- et di-nucléaires de fer a été isolée et le comportement " non-innocent " du ligand a été mis en évidence. La combinaison de plusieurs techniques : diffraction des rayons X, RMN (en solution et à l'état solide), RPE, Mössbauer et spectroscopie infrarouge a permis de complètement caractériser à la fois les complexes diamagnétiques mais aussi paramagnétiques. Le chapitre 3 se concentre sur la transformation de CO2 par un système catalytique efficace au fer. Les complexes dihydrure de fer [Fe(H)2(diphosphine)2] catalysent la fonctionnalisation réductrice du CO2 dans des conditions douces. Dans ce système, la première étape concerne la réduction catalytique du CO2 par des hydroboranes donnant un composé bis(boryl)acetal. Via une stratégie " un pot, deux étapes " l'intermédiaire acétal est ensuite utilisé comme source de méthylène et est fonctionnalisé pour donner une série de composés organiques contenant non seulement des liaisons C-N mais aussi des liaisons C-O, C-S et C-C avec de bons à très bons rendements.

Organometallic Chemistry and Catalysis of Iron with Noninnocent Ligands

Organometallic Chemistry and Catalysis of Iron with Noninnocent Ligands PDF Author: Qiu Ming Liang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The development of iron catalysts is attractive owing to the ready availability, relatively low cost and low toxicity of iron, its oxides and many of its salts comparing to noble metals. Iron complexes are capable of not only the standard two-electron processes, but also single electron transfer reactions that are less prevalent in noble metal chemistry. In Nature, many iron-containing metalloenzymes make use of the noninnocent properties of ligands coordinated to the iron center in their active sites. Inspired by this, my thesis examines the fundamental coordination chemistry and catalysis of iron complexes using noninnocent ligands. The first part (Chapter 2−4) of my thesis describes the synthesis and reactivity of iron complexes bearing bidentate picolyl−NHC (NHC = N-heterocyclic carbene) ligands In Chapter 2, the coordination chemistry and reactivity of picolyl−NHC iron and ruthenium complexes were explored, which includes the diverse coordination modes of picolyl−NHC ligands upon deprotonation, metal-ligand cooperation, and small molecule binding. In Chapter 3, an unusual ligand rearrangement of a deprotonated picolyl−NHC ligand on iron and ruthenium was investigated. Chapter 4 describes the iron-catalyzed geminal-specific alkyne dimerization. The second part describes (Chapter 5) the synthesis and reactivity of iron complexes bearing bidentate o-phenylenediamide ligands including the syntheses of biomimetic [2Fe2S] clusters and their catalytic reactivity in catalytic silylation of dinitrogen.

A Journey Into the Coordination Chemistry, Reactivity and Catalysis of Iron and Palladium Formazanate Complexes

A Journey Into the Coordination Chemistry, Reactivity and Catalysis of Iron and Palladium Formazanate Complexes PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 232

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Book Description


Iron Catalysis in Organic Chemistry

Iron Catalysis in Organic Chemistry PDF Author: Bernd Plietker
Publisher: John Wiley & Sons
ISBN: 3527623280
Category : Science
Languages : en
Pages : 295

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Book Description
This first comprehensive book to cover this exciting field also deals with the biological aspects, such as enzymes with iron. Following an introduction, this handy reference and handbook goes on to deal with reductions, oxidations of C, H- and C=C bonds, oxidative allylic oxygenation and amination, the oxidation of heteroatoms, cross coupling reactions, aromatic and nucleophilic substitutions, addition to carbonyl compounds, and cyclisations as well as ring opening reactions. The chapters are clearly classified according to the reaction type, allowing readers to quickly locate the desired information.

Iron Catalysis

Iron Catalysis PDF Author: Bernd Plietker
Publisher: Springer
ISBN: 3642146708
Category : Science
Languages : en
Pages : 227

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Book Description
Juan I. Padrón and Víctor S. Martín: Catalysis by means of Fe-based Lewis acids; Hiroshi Nakazawa*, Masumi Itazaki: Fe–H Complexes in Catalysis; Kristin Schröder, Kathrin Junge, Bianca Bitterlich, and Matthias Beller: Fe-catalyzed Oxidation Reactions of Olefins, Alkanes and Alcohols: Involvement of Oxo- and Peroxo Complexes; Chi-Ming Che, Cong-Ying Zhou, Ella Lai-Ming Wong: Catalysis by Fe=X Complexes (X=NR, CR2); René Peters, Daniel F. Fischer and Sascha Jautze: Ferrocene and Half Sandwich Complexes as Catalysts with Iron Participation; Markus Jegelka, Bernd Plietker: Catalysis by Means of Complex Ferrates.

Chemistry of Iron

Chemistry of Iron PDF Author: J. Silver
Publisher: Springer Science & Business Media
ISBN: 9401121400
Category : Science
Languages : en
Pages : 316

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Book Description
This book is designed to be of use to the reader in two different ways. First, it is intended to provide a general introduction to all aspects of iron chemistry for readers from a variety of different scientific backgrounds. It has been written at a level suitable for use by graduates and advanced undergraduates in chemistry and biochemistry, and graduates in physics, geology, materials science, metallurgy and biology. It is not designed to be a dictionary of iron compounds but rather to provide each user with the necessary tools and background to pursue their ,individual interests in the wide areas that are influenced by the chemistry of iron. To achieve this goal each chapter has been written by a contemporary expert active in the subject so that the reader will benefit from their individual insight. Although it is generally assumed that the reader will have an understanding of bonding theories and general chemistry, the book is well referenced so that any deficiencies in the reader's background can be addressed. The book was also designed as a general reference book for initial pointers into a scientific literature that is growing steadily as the understanding and uses of this astonishingly versatile element continue to develop. To meet this aim the book attempts some coverage of all aspects of the chemistry of iron, not only outlining what understanding has been achieved to date but also identifying targets to be aimed at in the future.

Iron-Containing Enzymes

Iron-Containing Enzymes PDF Author: Samuel P de Visser
Publisher: Royal Society of Chemistry
ISBN: 1849732981
Category : Science
Languages : en
Pages : 463

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Book Description
There are many mononuclear iron containing enzymes in nature that utilize molecular oxygen and transfer one or both oxygen atoms of O2 to substrates. These enzymes catalyze many processes including the biosynthesis of hormones, the metabolism of drugs, DNA and RNA base repair and, the biosynthesis of antibiotics. Therefore, mononuclear iron containing enzymes are important intermediates in bioprocesses and have great potential in the commercial biosynthesis of specific products since they often catalyze reactions regioselectively or stereospecifically. Understanding their mechanism and function is important and will assist in searches for commercial exploitation. In recent years, advances in experimental as well as theoretical methodologies have made it possible to study the mechanism and function of these enzymes and much information on their properties has been gained. This book highlighting recent developments in the field is, therefore, a timely addition to the literature and will interest a broad readership in the fields of biochemistry, inorganic chemistry and computational chemistry. The Editors, leaders in the field of nonheme and heme iron containing monoxygenases, have filled the book with topical review chapters by leaders in the various sub-disciplines.

Coordination Chemistry of Manganese and Iron with N,O-donor Ligands

Coordination Chemistry of Manganese and Iron with N,O-donor Ligands PDF Author: Meenal D. Godbole
Publisher:
ISBN: 9789073838611
Category :
Languages : en
Pages : 148

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Book Description


Handbook of Coordination Catalysis in Organic Chemistry

Handbook of Coordination Catalysis in Organic Chemistry PDF Author: Penny A Chaloner
Publisher: Butterworth-Heinemann
ISBN: 1483161447
Category : Science
Languages : en
Pages : 1009

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Book Description
Handbook of Coordination Catalysis in Organic Chemistry presents the increasing importance of homogeneous catalysis by metal complexes. This book highlights special selectivities that can be obtained using coordination complexes as catalysts, including a discussion of homogeneous catalysts and closely related polymer supported complexes. Other topics include hydrogenation and related reactions, reactions of carbon monoxide, and additions to carbon-carbon multiple bonds. The isomerization reactions, reactions of the carbonyl group, formation of carbon-carbon bonds, and alkene metathesis are also deliberated. This publication is intended for organic chemists, but is also useful to specialists and researchers interested in the coordination catalysis in organic chemistry.

Advances in Catalytic Activation of Dioxygen by Metal Complexes

Advances in Catalytic Activation of Dioxygen by Metal Complexes PDF Author: László I. Simándi
Publisher: Springer Science & Business Media
ISBN: 0306478161
Category : Science
Languages : en
Pages : 349

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Book Description
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.