Pincer Metal Complexes

Pincer Metal Complexes
Author: Akshai Kumar
Publsiher: Elsevier
Total Pages: 244
Release: 2021-11-12
ISBN 10: 0128220929
ISBN 13: 9780128220924
Language: EN, FR, DE, ES & NL

Pincer Metal Complexes Book Review:

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

The Chemistry of Pincer Compounds

The Chemistry of Pincer Compounds
Author: David Morales-Morales,Craig G.M. Jensen
Publsiher: Elsevier
Total Pages: 466
Release: 2011-08-11
ISBN 10: 9780080545158
ISBN 13: 0080545157
Language: EN, FR, DE, ES & NL

The Chemistry of Pincer Compounds Book Review:

Pincer complexes are formed by the binding of a chemical structure to a metal atom with at least one carbon-metal bond. Usually the metal atom has three bonds to a chemical backbone, enclosing the atom like a pincer. The resulting structure protects the metal atom and gives it unique properties. The last decade has witnessed the continuous growth in the development of pincer complexes. These species have passed from being curiosity compounds to chemical chameleons able to perform a wide variety of applications. Their unique metal bound structures provide some of the most active catalysts yet known for organic transformations involving the activation of bonds. The Chemistry of Pincer Compounds details use of pincer compounds including homogeneous catalysis, enantioselective organic transformations, the activation of strong bonds, the biological importance of pincer compounds as potential therapeutic or pharmaceutical agents, dendrimeric and supported materials. * Describes the chemistry and applications of this important class of organometallic and coordination compounds * Covers the areas in which pincer complexes have had an impact * Includes information on more recent and interesting pincer compounds not just those that are well-known

Pincer and Pincer Type Complexes

Pincer and Pincer Type Complexes
Author: Kálmán J. Szabó,Ola F. Wendt
Publsiher: John Wiley & Sons
Total Pages: 320
Release: 2014-06-10
ISBN 10: 3527681337
ISBN 13: 9783527681334
Language: EN, FR, DE, ES & NL

Pincer and Pincer Type Complexes Book Review:

This new book on this hot topic summarizes the key achievements for the synthesis and catalytic applications of pincer and pincer-type complexes, providing readers with the latest research highlights. The editors have assembled an international team of leaders in the field, and their contributions focus on the application of various pincer complexes in modern organic synthesis and catalysis, such as C-C and C-X bond forming reactions, C-H bond functionalization, and the activation of small molecules, as well as asymmetric catalysis. A must-have for every synthetic chemist in both academia and industry intending to develop new catalysts and improved synthetic protocols.

Pincer Compounds

Pincer Compounds
Author: David Morales-Morales
Publsiher: Elsevier
Total Pages: 754
Release: 2018-04-11
ISBN 10: 0128129328
ISBN 13: 9780128129326
Language: EN, FR, DE, ES & NL

Pincer Compounds Book Review:

Pincer Compounds: Chemistry and Applications offers valuable state-of-the-art coverage highlighting highly active areas of research—from mechanistic work to synthesis and characterization. The book focuses on small molecule activation chemistry (particularly H2 and hydrogenation), earth abundant metals (such as Fe), actinides, carbene-pincers, chiral catalysis, and alternative solvent usage. The book covers the current state of the field, featuring chapters from renowned contributors, covering four continents and ranging from still-active pioneers to new names emerging as creative strong contributors to this fascinating and promising area. Over a decade since the publication of Morales-Morales and Jensen’s The Chemistry of Pincer Compounds (Elsevier 2007), research in this unique area has flourished, finding a plethora of applications in almost every single branch of chemistry—from their traditional application as very robust and active catalysts all the way to potential biological and pharmaceutical applications. Describes the chemistry and applications of this important class of organometallic and coordination compounds Includes contributions from global leaders in the field, featuring pioneers in the area as well as emerging experts conducting exciting research on pincer complexes Highlights areas of promising and active research, including small molecule activation, earth abundant metals, and actinide chemistry

The Privileged Pincer Metal Platform Coordination Chemistry Applications

The Privileged Pincer Metal Platform  Coordination Chemistry   Applications
Author: Gerard van Koten,Robert A Gossage
Publsiher: Springer
Total Pages: 374
Release: 2015-08-27
ISBN 10: 3319229273
ISBN 13: 9783319229270
Language: EN, FR, DE, ES & NL

The Privileged Pincer Metal Platform Coordination Chemistry Applications Book Review:

The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics in pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors.

Organometallic Pincer Chemistry

Organometallic Pincer Chemistry
Author: Gerard van Koten,David Milstein
Publsiher: Springer
Total Pages: 356
Release: 2012-09-17
ISBN 10: 3642310818
ISBN 13: 9783642310812
Language: EN, FR, DE, ES & NL

Organometallic Pincer Chemistry Book Review:

Gerard van Koten: The Mono-anionic ECE-Pincer Ligand - a Versatile Privileged Ligand Platform: General Considerations.- Elena Poverenov, David Milstein: Non-Innocent Behavior of PCP and PCN Pincer Ligands of Late Metal Complexes.- Dean M. Roddick: Tuning of PCP Pincer Ligand Electronic and Steric Properties.- Gemma R. Freeman, J. A. Gareth Williams: Metal Complexes of Pincer Ligands: Excited States, Photochemistry, and Luminescence.- Davit Zargarian, Annie Castonguay, Denis M. Spasyuk: ECE-Type Pincer Complexes of Nickel.- Roman Jambor and Libor Dostál: The Chemistry of Pincer Complexes of 13 - 15 Main Group Elements.- Kálmán J. Szabo: Pincer Complexes as Catalysts in Organic Chemistry.- Jun-ichi Ito and Hisao Nishiyama: Optically Active Bis(oxazolinyl)phenyl Metal Complexes as Multi-potent Catalysts.- Anthony St. John, Karen I. Goldberg, and D. Michael Heinekey: Pincer Complexes as Catalysts for Amine Borane Dehydrogenation.- Dmitri Gelman and Ronit Romm: PC(sp3)P Transition Metal Pincer Complexes: Properties and Catalytic Applications.- Jennifer Hawk and Steve Craig: Physical Applications of Pincer Complexes.

Metal Ligand Co operativity

Metal Ligand Co operativity
Author: Gerard van Koten,Karl Kirchner,Marc-Etienne Moret
Publsiher: Springer Nature
Total Pages: 451
Release: 2021
ISBN 10: 3030689166
ISBN 13: 9783030689162
Language: EN, FR, DE, ES & NL

Metal Ligand Co operativity Book Review:

This book provides researchers in the fields of organic chemistry, organometallic chemistry and homogeneous catalysis with an overview of significant recent developments in the area of metal-ligand cooperativity, with a focus on pincer architectures. The various contributions highlight the widespread impact of M-L co-operativity phenomena on modern organometallic chemistry and catalyst development. The development of efficient and selective catalytic transformations relies on the understanding and fine control of the various elementary reactions that constitutes a catalytic cycle. Co-operative ligands, which actively participate in bond making and bond breaking together to the metal they support, open up new avenues in this area. In particular, buttressing a weak or reactive metal-ligand bond by flanking coordinating arms in a pincer ligand design is proving a versatile strategy to access robust metal complexes that exhibit unusual and selective reactivity patterns.

Synthesis of Bifunctional Pincer Metal Complexes Containing N heterocyclic Carbenes

Synthesis of Bifunctional Pincer Metal Complexes Containing N heterocyclic Carbenes
Author: Derek B. Brown
Publsiher: Unknown
Total Pages: 63
Release: 2010
ISBN 10: 1928374650XXX
ISBN 13: OCLC:695464503
Language: EN, FR, DE, ES & NL

Synthesis of Bifunctional Pincer Metal Complexes Containing N heterocyclic Carbenes Book Review:

The goal of this research is to synthesize pincer ligands and complexes with a central pyridine ligand substituted at positions 2 and 6 by two N-heterocyclic carbenes, each bearing a pendant heteroaryl substituent. Related pincers without heteroaryl groups have been reported in the past 15 years as catalysts, and our ultimate goal was to enable the study of the heteroaryl moieties as pendant bases, creating improved bifunctional catalysts. Two classes of pincers were made: one with methylene spacers between the central pyridine and the imidazol-2-ylidene groups, and those whose imidazol-2-ylidene groups were attached directly to the pyridine without any spacers. Four bis(imidazolium) salt pincer precursors with methylene spacers were made, and reaction with Ag2O produced silver-carbene complexes which act as transmetallation agents for further complexation. Two of the analogs were able to be metallated with (COD)PdCl2 to form palladium-carbene complexes, NMR data for which are in accord with a puckered structure induced by the methylene spacers. One of these complexes showed catalytic activity in the Heck coupling reaction. Synthesis of analogs lacking spacers under literature conditions proved to be impossible, presumably because of reduced nucleophilicity of 1-heteroarylimidazoles. Thus, a systematic study of reactivity of 1-substituted imidazoles with five 2,6-disubstituted pyridines conclusively showed that 2,6-bis(trifluoromethanesulfonyloxy)pyridine (16) was the best precursor. A well-described synthesis of 16 was developed, paving the way to making seven analogs of pincer precursors without methylene spacers. Reaction of two of these pincer precursors with Ag2O and NaOH produced silver-carbene bridged-dimer complexes which were characterized by X-ray diffraction and show promise as sources of other metal complexes.

Unconventional Pincer Ligands and Their Transition Metal Complexes

Unconventional Pincer Ligands and Their Transition Metal Complexes
Author: Caitlin McQueen
Publsiher: Unknown
Total Pages: 404
Release: 2013
ISBN 10: 1928374650XXX
ISBN 13: OCLC:953341537
Language: EN, FR, DE, ES & NL

Unconventional Pincer Ligands and Their Transition Metal Complexes Book Review:

This thesis describes investigations into unconventional pincer systems incorporating non-classical central donor groups. Direct reaction of 1,3-bis(diphenylphosphinomethyl)-2,3-dihydro-1H-1,3,2-benzodiazaborole (dppBH) with metal complexes and subsequent ligand manipulations have provided novel ruthenium and, for the first time, osmium boryl pincer complexes. The boryl complexes thus prepared have been observed to undergo various subsequent reactions involving the chloride and triphenylphosphine co-ligands to give new complexes. Further reactions of dppBH with complexes dichlorotris(triphenylphosphine)ruthenium(II) and -osmium(II) resulted in the first examples of sigma-borane pincer complexes, which represent intercepted intermediates in the B-H activation process, affording rare structural data for an osmium sigma-borane complex. The B-H bond of the ruthenium complex could be readily cleaved upon ligand manipulation, such as substitution of triphenylphosphine with the pi-acidic carbonyl and isocyanide ligands, which gave the disubstituted boryl complexes via spontaneous loss of HCl. Attempts to isolate a 1,8-diaminonaphthalene-based borane analogue of dppBH proved unsuccessful, though the compound 1,3 bis(diphenylphosphinomethyl)-2,3-dihydroperimidine (PhDHP) was obtained as a side-product in one case. Further investigations into this compound resulted in the development of a convenient one-pot synthesis, which could be extended to the cyclohexyl analogue 1,3 bis(dicyclohexylphosphinomethyl)-2,3-dihydroperimidine (CyDHP). These compounds were observed to react with various platinum group metal complexes to give novel N-heterocyclic carbene (NHC) pincer complexes via double geminal C-H activation of the central methylene group, providing the first examples of perimidine-based NHC inclusion as the central equatorial group of a pincer system. Reactions of dihydroperimidines with group 8 complexes dichlorotris(triphenylphosphine)ruthenium(II) and -osmium(II) have thus provided the novel pincer NHC complexes. However, reactions of PhDHP with dichlorotris(triphenylphosphine)ruthenium and CyDHP with less electron-rich ruthenium precursors instead gave asymmetric PNP coordinated complexes, in which C-H activation had not occurred, though this could be induced thermally in one case. Reactions of PhDHP and CyDHP with chlorotris(triphenylphosphine)rhodium(I) gave 16-electron chloro rhodium(I) NHC pincer complexes, and their reactivity was investigated via co-ligand manipulations and a preliminary catalytic study. The latter revealed that, while this complex was not particularly efficient for most of the reactions investigated, in some cases simple modifications of the co-ligands could substantially improve catalytic activity. Reactions of the pro-ligands with iridium precursors instead favoured the formation of coordinatively saturated complexes. The reaction of CyDHP with chlorobis(cyclooctene)iridium(I) dimer resulted in a dihydrido chloro iridium(III) NHC pincer complex, while reaction with chlorocarbonylbis(triphenylphosphine)iridium(I) instead afforded a sigma perimidinyl hydrido complex, resulting from oxidative addition of only one C-H bond to the metal centre. This was subsequently shown to readily form an NHC complex upon hydride abstraction. It became apparent that, upon reaction of the dihydroperimidine pro-ligands with metal complexes, carbene formation occurs more readily for electron-rich systems, otherwise resulting in either single or no C-H activation. These observations have provided some insight into the mechanism of NHC formation via chelate-assisted C-H activation of these precursors.

Organometallic Chemistry and Catalysis

Organometallic Chemistry and Catalysis
Author: Didier Astruc
Publsiher: Springer Science & Business Media
Total Pages: 608
Release: 2007-08-02
ISBN 10: 3540461280
ISBN 13: 9783540461289
Language: EN, FR, DE, ES & NL

Organometallic Chemistry and Catalysis Book Review:

This volume covers both basic and advanced aspects of organometallic chemistry of all metals and catalysis. In order to present a comprehensive view of the subject, it provides broad coverage of organometallic chemistry itself. The catalysis section includes the challenging activation and fictionalization of the main classes of hydrocarbons and the industrially crucial heterogeneous catalysis. Summaries and exercises are provides at the end of each chapter, and the answers to these exercises can be found at the back of the book. Beginners in inorganic, organic and organometallic chemistry, as well as advanced scholars and chemists from academia and industry will find much value in this title.

Late Transition metal Complexes Supported by Pincer Ligands

Late Transition metal Complexes Supported by Pincer Ligands
Author: Wilson D. Bailey
Publsiher: Unknown
Total Pages: 181
Release: 2016
ISBN 10: 1928374650XXX
ISBN 13: OCLC:989737536
Language: EN, FR, DE, ES & NL

Late Transition metal Complexes Supported by Pincer Ligands Book Review:

Late transition-metal pincer complexes of primarily palladium(II) and platinum(II) have been investigated for their application as catalysts in partial oxidation reactions. The epoxidation of higher olefins using molecular oxygen as the oxidant has been targeted, and the individual reaction steps needed to accomplish this overall transformation are described herein, including: (1) hydrogenolysis of a metal hydroxide (M-OH) species to yield a metal hydride (M-H), (2) insertion of O2 into the M-H bond to form a metal hydroperoxide (M-OOH), and (3) O-atom transfer from the M-OOH to epoxides, yielding a M-OH and completing the catalytic cycle. Previous results from our group on these individual transformations using (tBuPCP)Pd and (tBuPCO)Pd fragments are also reviewed. The requirements for O2 insertion into PdII and PtII hydrides are discussed. An array of cationic, neutral, and anionic Pd-H and Pt-H complexes supported by a tBuPNP backbone were synthesized and evaluated for O2 insertion (tBuPNP = 2,6-bis-(di-tbutylphosphinomethyl)pyridine). Metal-ligand cooperation was observed in the activation of H2 to form neutral hydride complexes. The effect of ligand protonation/deprotonation on the trans influence experienced by the hydride ligand was investigated. No reaction with O2 was observed with the cationic hydrides, while the neutral and anionic forms reacted with O2 at the tBuPNP backbone. The synthesis and characterization of mono- and dinuclear Pd-OH complexes supported by a PCNR pincer ligand (PCNR = (1-(3-((di-tert-butylphosphino)methyl)phenyl)-1H-5-R-pyrazole), R = H, Me) is presented. When R = H, ligand pyrazole "rollover" C-H activation was observed, forming a mixed ligand (PCNH)Pd(μ-OH)Pd(PCC) dinuclear structure. This "rollover" was investigated using DFT computations. The mono- and dinuclear hydroxide species were evaluated for hydrogenolysis. The dinuclear compounds {[(PCNR)Pd]2(μ-OH)}[OTf] reacted under an H2 atmosphere to yield the corresponding dinuclear hydrides {[(PCNR)Pd]2(μ-H)}[OTf]. A mechanistic study on the hydrogenolysis of the μ-bridged hydroxide {[(PCNMe)Pd]2(μ-OH)}[OTf] revealed first order kinetics in both [Pd] and [H2]. Terminal hydrides were not detected, and reduction of the mononuclear hydroxide complexes (PCNR)Pd-OH to Pd0 was observed under H2. The reduction was proposed to proceed through displacement of the pyrazole arm, and was examined by DFT computations. Lastly, a new strategy to promote O-atom transfer from M-OOH to epoxides, the final step in the targeted catalytic cycle, is proposed. Preliminary studies on NNNPyz, NNNEt, and NNMe ligated PdII and PtII are discussed (NNNPyz = 2,6-bis(5-tbutyl-1H-pyrazol-3-yl)pyridine; NNNEt = 2-(5-tbutyl-1H-pyrazol-3-yl)-6-(diethylaminomethyl)pyridine; NNMe = 2-(5-tBu-1H-pyrazol-3-yl)-6-methylpyridine). The NNNPyz ligand, containing two acidic sites in proximity to the fourth site in the square plane, was found to protonate M-O2 complexes, chelate to the metal center and oxidize phosphine substrates. Similar reactivity was observed with NNNEt and NNMe, however hemilability of these ligands resulted in undesired coordination modes.

Metal ligand Co operativity

Metal ligand Co operativity
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 2021
ISBN 10: 9783030689186
ISBN 13: 3030689182
Language: EN, FR, DE, ES & NL

Metal ligand Co operativity Book Review:

This book provides researchers in the fields of organic chemistry, organometallic chemistry and homogeneous catalysis with an overview of significant recent developments in the area of metal-ligand cooperativity, with a focus on pincer architectures. The various contributions highlight the widespread impact of ML co-operativity phenomena on modern organometallic chemistry and catalyst development. The development of efficient and selective catalytic transformations relies on the understanding and fine control of the various elementary reactions that constitutes a catalytic cycle. Co-operative ligands, which actively participate in bond making and bond breaking together to the metal they support, open up new avenues in this area. In particular, buttressing a weak or reactive metal-ligand bond by flanking coordinating arms in a pincer ligand design is proving a versatile strategy to access robust metal complexes that exhibit unusual and selective reactivity patterns.

CO2 Hydrogenation Catalysis

CO2 Hydrogenation Catalysis
Author: Yuichiro Himeda
Publsiher: John Wiley & Sons
Total Pages: 320
Release: 2021-03-30
ISBN 10: 352782409X
ISBN 13: 9783527824090
Language: EN, FR, DE, ES & NL

CO2 Hydrogenation Catalysis Book Review:

A guide to the effective catalysts and latest advances in CO2 conversion in chemicals and fuels Carbon dioxide hydrogenation is one of the most promising and economic techniques to utilize CO2 emissions to produce value-added chemicals. With contributions from an international team of experts on the topic, CO2 Hydrogenation Catalysis offers a comprehensive review of the most recent developments in the catalytic hydrogenation of carbon dioxide to formic acid/formate, methanol, methane, and C2+ products. The book explores the electroreduction of carbon dioxide and contains an overview on hydrogen production from formic acid and methanol. With a practical review of the advances and challenges in future CO2 hydrogenation research, the book provides an important guide for researchers in academia and industry working in the field of catalysis, organometallic chemistry, green and sustainable chemistry, as well as energy conversion and storage. This important book: Offers a unique review of effective catalysts and the latest advances in CO2 conversion Explores how to utilize CO2 emissions to produce value-added chemicals and fuels such as methanol, olefins, gasoline, aromatics Includes the latest research in homogeneous and heterogeneous catalysis as well as electrocatalysis Highlights advances and challenges for future investigation Written for chemists, catalytic chemists, electrochemists, chemists in industry, and chemical engineers, CO2 Hydrogenation Catalysis offers a comprehensive resource to understanding how CO2 emissions can create value-added chemicals.

Synthesis and Reactivity of Late Transition Metal Pincer Complexes

Synthesis and Reactivity of Late Transition Metal Pincer Complexes
Author: Karena A. Smoll
Publsiher: Unknown
Total Pages: 157
Release: 2018
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1083644067
Language: EN, FR, DE, ES & NL

Synthesis and Reactivity of Late Transition Metal Pincer Complexes Book Review:

The Development of Next Generation Unsymmetrical CCC NHC Pincer Ligand Architectures and Metalation to Form Unsymmetrical CCC NHC Pincer Ta Complexes

The Development of Next Generation  Unsymmetrical CCC   NHC Pincer Ligand Architectures and Metalation to Form Unsymmetrical CCC   NHC Pincer Ta Complexes
Author: Hannah Killian Box
Publsiher: Unknown
Total Pages: 317
Release: 2015
ISBN 10: 1928374650XXX
ISBN 13: OCLC:960328163
Language: EN, FR, DE, ES & NL

The Development of Next Generation Unsymmetrical CCC NHC Pincer Ligand Architectures and Metalation to Form Unsymmetrical CCC NHC Pincer Ta Complexes Book Review:

The impact of N-heterocyclic carbenes (NHC) as ligands for transition metal catalysis has been rigorously investigated since their isolation by Arduengo in 1991. have become abundant in late-transition metal chemistry. This is attributed to NHCs being stronger sigma-donors than even the strongest phosphine analogues, thus constructing a transition metal-NHC complex with improved stability, catalytic reactivity, and selectivity. Additionally, pincer ligands have become recognized as an important class of ligands for transition metal complexes. The unique steric and tunability of pincer ligands has resulted in pincer-transition metal complexes being exploited as catalysts for a multitude of transformations. Both ligand classes, NHC and pincer, have been reported as stable organometallic catalysts that demonstrate high catalytic activity. The combination of these two ligand systems by incorporation of NHCs into pincer ligands has attracted considerable attention. NHC pincer systems have been reported as stable organometallic catalysts that demonstrate high catalytic activity. The expansion of CCC-NHC ligand precursor methodologies and application of the newly reported methodologies in order to diversify CCC-NHC ligand architectures is reported. Extension of the amine elimination methodology yielded unsymmetrical CCCNHC Ta pincer complexes. Studies on the manipulation of the previously reported symmetrical CCC-NHC pincer Ta complex’s coordination sphere to synthesize a rare Ta diimido complex with unique reactivity towards advantageous proton sources and oxidative amination of aminoalkenes are also expanded upon. These next generation catalysts developed from these architectures may prove useful in catalyzing a broad array of transformations not previously accessible through the four standard NHC containing pincer ligand architectures.

Strong Bond Activation with Late Transition metal Pincer Complexes as a Foundation for Potential Catalysis

Strong Bond Activation with Late Transition metal Pincer Complexes as a Foundation for Potential Catalysis
Author: Yanjun Zhu
Publsiher: Unknown
Total Pages: 135
Release: 2012
ISBN 10: 1928374650XXX
ISBN 13: OCLC:813236790
Language: EN, FR, DE, ES & NL

Strong Bond Activation with Late Transition metal Pincer Complexes as a Foundation for Potential Catalysis Book Review:

Strong bond activation mediated by pincer ligated transiton-metal complexes has been the subject of intense study in recent years, due to its potential involvement in catalytic transformations. This dissertation has focused on the net heterolytic cleavage of B-H and B-B bonds across the N-Pd bond in a cationic (PNP)Pd fragment, the C-H oxidative addition to a (PNP)Ir center and the recent results on the C-H and C-O oxidative addition in reactions of aryl carboxylates with the (PNP)Rh fragment. Transition metal carbene and carbyne complexes are of great interest because of their role in a wide variety of catalytic reactions. Our work has resulted in the isolation of a rhodium(I) difluorocarbene. Reaction of the rhodium difluorocarbene complex with a silylium salt led to the C-F bond cleavage and the formation of a terminal fluorocarbyne complex. Reductive elimination is a critical step of cross coupling reactions. In order to examine the effect of the pincer ligand on the reductive elimination reactions from Rh(III), the first pi-accepting PNP ligand bearing pyrrolyl substituents was prepared and installed onto the rhodium center. Arylhalide (halide = Br, I) oxidative addition was achieved in the presence of donor ligands such as acetonitrile to form stable six-coordinate Rh(III) compounds. The C-O reductive elimination reactions in this system were also explored.

Conjugated ECE Pincer Metal Complexes

Conjugated ECE Pincer Metal Complexes
Author: Guido Dirk Batema
Publsiher: Unknown
Total Pages: 194
Release: 2007
ISBN 10: 9789039345771
ISBN 13: 9039345775
Language: EN, FR, DE, ES & NL

Conjugated ECE Pincer Metal Complexes Book Review:

Transition Metal Dinitrogen Complexes

Transition Metal Dinitrogen Complexes
Author: Yoshiaki Nishibayashi
Publsiher: John Wiley & Sons
Total Pages: 496
Release: 2019-05-06
ISBN 10: 352734425X
ISBN 13: 9783527344253
Language: EN, FR, DE, ES & NL

Transition Metal Dinitrogen Complexes Book Review:

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.

First Row Late D block Metal Pincer Complexes

First Row Late D block Metal Pincer Complexes
Author: Jinting Xu
Publsiher: Unknown
Total Pages: 135
Release: 2020
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1230792638
Language: EN, FR, DE, ES & NL

First Row Late D block Metal Pincer Complexes Book Review:

Late Transition Metal Complexes of Pentafluorophenylphosphino pincer Ligands

Late Transition Metal Complexes of Pentafluorophenylphosphino pincer Ligands
Author: Bradley George Anderson
Publsiher: Unknown
Total Pages: 376
Release: 2012
ISBN 10: 1928374650XXX
ISBN 13: OCLC:822231698
Language: EN, FR, DE, ES & NL

Late Transition Metal Complexes of Pentafluorophenylphosphino pincer Ligands Book Review: