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Ferrocene Based Redox Switchable Ligands
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Book Synopsis Ferrocene-based Redox-switchable Ligands by : Alan Martin Allgeier
Download or read book Ferrocene-based Redox-switchable Ligands written by Alan Martin Allgeier and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new redox-active HE(II) sequestering ligand, ($\eta\sp5$-C$\rm\sb5H\sb4SCH\sb2CH\sb2SH)\sb2$Fe, 5, has been synthesized and characterized. Ligand 5 undergoes a reaction with Hg(ClO$\sb4)\sb2$, which has been detected by $\sp1$H NMR spectroscopy and cyclic voltammetry in DMSO.
Book Synopsis Synthesis of Ferrocene-based Ligands and Their Applications in Redox-switchable Catalysis for Selective Hydroamination Reactions by : Brian Raymond Lydon
Download or read book Synthesis of Ferrocene-based Ligands and Their Applications in Redox-switchable Catalysis for Selective Hydroamination Reactions written by Brian Raymond Lydon and published by . This book was released on 2013 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis contains results from three different projects. The first project focused on the synthesis of monoanionic ferrocene-based N, P ligands. 1-(tert-butyldimethylsilyl)amino-1'-diphenylphosphinoferrocene (fc(TBSNH)(PPh2)) was successfully synthesized and characterized by 1H, 31P, 13C NMR spectroscopy, and elemental analysis. Unfortunately, coordination to group 3 metal complexes was unsuccessful. The second project focused on the synthesis of redox-active ferrocene-based ligands and their applications in selective intramolecular hydroamination. Redox-active ligands can be used as a reversible trigger to control catalytic reactivity. Preliminary results observed by 1H NMR spectroscopy suggest that [1,1'-ferrocenedi(thio(3,5-di-tert-butyl-2-phenoxide)]Zr dibenzyl ((thiolfan2)ZrBn2) shows selectivity between primary and secondary alkeneamines depending on the oxidation state of the iron center. The final project was a computational study using density functional theory (DFT) to understand recent experimental findings involving ferrocene-functionalized biodegradable polymers. Gibbs free energy for six cyclic carbonate monomers and three [delta]-valerolactone monomers was calculated. Computational results correlated strongly with experimental data in that [delta]-valerolactones, which could not be polymerized, had a higher Gibbs free energy than cyclic carbonates, which could be polymerized.
Book Synopsis Synthesis of Metal Complexes Supported by Ferrocene-based Ligands for Tandem Catalysis and Applications Toward Liquid Cell Quantum Sensing by : Yi Shen
Download or read book Synthesis of Metal Complexes Supported by Ferrocene-based Ligands for Tandem Catalysis and Applications Toward Liquid Cell Quantum Sensing written by Yi Shen and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developing methodologies to synthesize high-value products efficiently from simple substrates with control over the reactivity and selectivity is highly favored by the chemical industry. Employing assisted tandem catalysis, where serial reactions can be carried out in one pot, to achieve streamlined complex syntheses significantly reduces the number of steps and waste. Harnessing spatial and temporal control in catalysis enables approaches toward one-pot transformations and allows the integration of several catalytic processes. Ferrocene-based ligand-supported metal complexes represent a promising class of catalysts that can incorporate redox control over catalytic processes. We have developed a redox-controlled selective hydroamination reaction catalyzed by (thiolfan*)Zr(NEt2)2 (thiolfan*= 1, 1'-bis (2,4-di-tert-butyl-6-thiophenoxy)ferrocene). In situ switching of the catalyst's state during the reaction enables selectivity toward different substrates (Chapter 2).Incorporating the greenhouse gas CO2 into N-carboxyanhydrides (NCAs) followed by subsequent NCA utilization illustrates the possibility of integrating two synthetic steps in one vessel to afford a valuable material with possible CO2 recycling. To demonstrate the immense potential of integrating multi-step transformations in one pot, we developed a set of sustainable conditions for NCA synthesis (Chapter 3). Moreover, several metal catalysts supported by ferrocene-based ligands were found to catalyze NCA polymerization in the presence of a co-catalyst. To establish an integrated system composed of two incompatible processes, we aimed to compartmentalize the active reagents for each step. The structure of the ferrocene-based pro-ligand was modified for surface anchoring. Our efforts toward immobilizing ferrocene-supported metal catalysts onto conductive surfaces pave the way of achieving spatiotemporal control over the processes of NCA synthesis and polymerization (Chapter 4). In addition to the redox-switchable characteristic, ferrocene-based compounds provide a unique platform to support lanthanides and engender distinctive optical properties to them. We synthesized and characterized a series of ytterbium complexes displaying an ultra-narrow absorption in the ultraviolet-visible (UV-Vis) region. The extraordinarily narrow linewidth observed for (thiolfan)YbCl(THF) (thiolfan = 1,1'-bis(2,4-di-tert-butyl-6-thiomethylenephenoxy)ferrocene) allows us to investigate its applications toward magnetic field and liquid cell quantum sensing (Chapter 5).
Download or read book Ferrocenes written by Petr Stepnicka and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferrocene—the prototypical metallocene—is a fascinating molecule. Even though it was first discovered over fifty years ago, research into ferrocene-containing compounds continues apace, largely stimulated by their successful applications in catalysis, materials science and bioorganometallic chemistry. Ferrocene derivatives are now recognised as useful starting materials for the preparation of new organometallic complexes and functional materials, efficient catalyst components, as well as redox-active modifiers to biomolecules. Ferrocenes: Ligands, Materials and Biomolecules provides the reader with a background overview and describes recent advances in the development and application of ferrocene compounds, including: synthesis and catalytic utilisation of chiral and non-chiral ferrocene ligands ferrocene-based sensors electrooptical materials ferrocene polymers liquid-crystalline materials crystal engineering with ferrocene compounds the bioorganometallic chemistry of ferrocene Ferrocenes: Ligands, Materials and Biomolecules is an essential guide for anyone working in the fields of organometallic synthesis and catalysis, materials science and bioorganometallic chemistry.
Book Synopsis Ferrocene-Chelating Heteroscorpionate Ligands Support Zinc Complexes as Redox Switchable Catalysts by : Tate Reuter
Download or read book Ferrocene-Chelating Heteroscorpionate Ligands Support Zinc Complexes as Redox Switchable Catalysts written by Tate Reuter and published by . This book was released on 2018 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferrocene-chelating heteroscorpionate compounds based on [fc(PPh2)(BH[(3-R-5-R'-1-H)2pz]2)] (fc = 1,1'-ferrocenediyl, pz = pyrazole) are studied and characterized for their role in the synthesis of block copolymers. The ferrocene scaffold is part of a heteroscorpionate ligand that supports late transition metals. A zinc complex, [fc(PPh2)(BH[(3,5-Me-1H)2pz]2)]Zn( -OCH2Ph), was synthesized previously and shown to exist in a dimeric state. Herein, the substituents on the pyrazole fragments of the scorpionate are replaced with bulkier groups to force the formation of a monomeric compound in order to arrive at a redox switchable catalyst.
Book Synopsis Symmetrically and Non-symmetrically Substituted 1,1'-ferrocenes as Supporting Ligands for Divalent Metals in Catalysis by : Mark Abubekerov
Download or read book Symmetrically and Non-symmetrically Substituted 1,1'-ferrocenes as Supporting Ligands for Divalent Metals in Catalysis written by Mark Abubekerov and published by . This book was released on 2017 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis of new polymers is motivated by the limitations of current materials. Recently, interest in copolymers containing blocks that display different or complementary properties has been increasing since these materials have potential for further performance enhancements. Inspired by recent developments in olefin polymerization catalysts, and based on the interest of the Diaconescu group in the reactivity of complexes supported by ferrocene-based chelating ligands, we developed a new ferrocene-chelating heteroscorpionate supporting ligand and investigated its applications in combination with late transition metals to redox-switchable catalysis for the production of multiblock copolymers. Additionally, we began investigations into the influence of the iron-secondary metal interactions on redox-switchable catalysis in complexes supported by symmetrically substituted, neutral ferrocene-based ligands.
Book Synopsis Redox-Active Ligands by : Marine Desage-El Murr
Download or read book Redox-Active Ligands written by Marine Desage-El Murr and published by John Wiley & Sons. This book was released on 2024-02-05 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Redox-Active Ligands Authoritative resource showcasing a new family of ligands that can lead to better catalysts and promising applications in organic synthesis Redox-Active Ligands gives a comprehensive overview of the unique features of redox-active ligands, describing their structure and synthesis, the characterization of their coordination complexes, and important applications in homogeneous catalysis. The work reflects the diversity of the subject by including ongoing research spanning coordination chemistry, organometallic chemistry, bioinspired catalysis, proton and electron transfer, and the ability of such ligands to interact with early and late transition metals, lanthanides, and actinides. The book is divided into three parts, devoted to introduction and concepts, applications, and case studies. After the introduction on key concepts related to the field, and the different types of ligands and complexes in which ligand-centered redox activity is commonly observed, mechanistic and computational studies are described. The second part focuses on catalytic applications of redox-active complexes, including examples from radical transformations, coordination chemistry and organic synthesis. Finally, case studies of redox-active guanidine ligands, and of lanthanides and actinides are presented. Other specific sample topics covered include: An overview of the electronic features of redox-active ligands, covering their historical perspective and biological background The versatility and mode of action of redox-active ligands, which sets them apart from more classic and tunable ligands such as phosphines or N-heterocyclic carbenes Preparation and catalytic applications of complexes of stable N-aryl radicals Metal complexes with redox-active ligands in H+/e- transfer transformations By providing up-to-date information on important concepts and applications, Redox-Active Ligands is an essential reading for researchers working in organometallic and coordination chemistry, catalysis, organic synthesis, and (bio)inorganic chemistry, as well as newcomers to the field.
Book Synopsis Modes of Cooperative Effects in Dinuclear Complexes by : Philippe Kalck
Download or read book Modes of Cooperative Effects in Dinuclear Complexes written by Philippe Kalck and published by Springer Nature. This book was released on 2023-05-23 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances in dinuclear complexes in which the metal-metal cooperative effect operates for obtaining substrate activation and high performance catalysts. Catalysis continues to be a fast expanding area to design efficient tools in synthesis and in industrial chemistry. It allows performing syntheses with short reaction times, atom economy, reduced consumption of energy and loss of reagents, and low level of wastes. Dinuclear complexes are known to be more efficient than the mononuclear analogues for the reaction rates and the selectivities. This book analyses the latest research, focusing on the key concepts, in building and using these dinuclear complexes. The book is aimed at researchers, graduate students and chemists at all levels in academia and industry.
Book Synopsis Redox-active Ligands Containing Ferrocene by : Niki Sachsinger
Download or read book Redox-active Ligands Containing Ferrocene written by Niki Sachsinger and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model Compounds and Monomers for Conducting Polymer-based Redox-switchable Hemilabile Ligands by : Thomas Brett Higgins
Download or read book Model Compounds and Monomers for Conducting Polymer-based Redox-switchable Hemilabile Ligands written by Thomas Brett Higgins and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ligand 1- (3-(diphenylphosphino)propyl) - 4-methyl-2,5-di-(2-thienyl)benzene was synthesized along with its corresponding Rh(I) cis-phosphine, $\eta\sp6$-arene complex. The electrochemistry and reactivity of this complex with acetonitrile and CO were investigated.
Book Synopsis Progress in Inorganic Chemistry by : Kenneth D. Karlin
Download or read book Progress in Inorganic Chemistry written by Kenneth D. Karlin and published by John Wiley & Sons. This book was released on 2009-09-17 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Straight from the frontier of scientific investigation . . . Nowhere is creative scientific talent busier than in the world of inorganic chemistry. And the respected Progress in Inorganic Chemistry series has long served as an exciting showcase for new research in this area. With contributions from internationally renowned chemists, this latest volume reports the most recent advances in the field, providing a fascinating window on the emerging state of the science. "This series is distinguished not only by its scope and breadth, but also by the depth and quality of the reviews." —Journal of the American Chemical Society "[This series] has won a deservedly honored place on the bookshelf of the chemist attempting to keep afloat in the torrent of original papers on inorganic chemistry." —Chemistry in Britain CONTENTS OF VOLUME 48: Synthesis, Structure, and Properties of Organic-Inorganic Perovskites and Related Materials (David B. Mitzi, IBM T. J. Watson Research Center, Yorktown Heights, New York). Transition Metals in Polymeric 1 - Conjugated Organic Frameworks (Richard P. Kingsborough and Timothy M. Swager, Massachusetts Institute of Technology, Cambridge, Massachusetts). The Transition Metal Coordination Chemistry of Hemilabile Ligands (Caroline S. Slone, Dana A. Weinberger, and Chad A. Mirkin, Northwestern University, Evanston, Illinois). Organometallic Fluorides of the Main Group Metals Containing the C-M-F Fragment (Balaji R. Jagirdar, Eamonn F. Murphy, and Herbert W. Roesky, Universität Göttingen, Germany). Coordination Complex Impregnated Molecular Sieves-Synthesis, Characterization, Reactivity, and Catalysis (Partha P. Paul, Southwest Research Institute, San Antonio, Texas). Advances in Metal Boryl and Metal-Mediated B-X Activation Chemistry (Milton R. Smith III, Michigan State University, East Lansing, Michigan).
Book Synopsis Synthesis of Yttrium and Aluminum Complexes Supported by a Mono-Substituted Ferrocene Ligand by : Jun Gao
Download or read book Synthesis of Yttrium and Aluminum Complexes Supported by a Mono-Substituted Ferrocene Ligand written by Jun Gao and published by . This book was released on 2015 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferrocene chelating ligands provide good stability of the resulting metal complexes and redox-switchable control in chemical processes catalyzed by those complexes. In comparison to traditional di-substituted ferrocene tetradentate ligands, mono-substituted tridentate ferrocene ligands may form metal complexes with a more open coordination sphere around the metal center that may allow an increased preference for substrate coordination. In addition, a mono-substituted ferrocene ligand allows the investigation of the through bond influence of the ferrocenyl group on catalytic metal centers by increasing the metal-iron distance. In this thesis, the design, synthesis, and characterization by 1H NMR spectroscopy of a novel mono-substituted ferrocene ligand are described. To explore its ability to support metal complexes with high activity and redox-switchable in polymerization reactions, yttrium alkoxide and aluminum alkyl complexes were also synthesized and characterized by 1H NMR spectroscopy.
Book Synopsis Ferrocenyl Carbenes as Redox-Switchable Ligands in Gold Catalysis - Synthesis, Redox-Behaviour and Elucidation of Side Reactions by : Philipp Veit
Download or read book Ferrocenyl Carbenes as Redox-Switchable Ligands in Gold Catalysis - Synthesis, Redox-Behaviour and Elucidation of Side Reactions written by Philipp Veit and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ligand Design in Metal Chemistry by : Mark Stradiotto
Download or read book Ligand Design in Metal Chemistry written by Mark Stradiotto and published by John Wiley & Sons. This book was released on 2016-09-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of ancillary ligands used to modify the structural and reactivity properties of metal complexes has evolved into a rapidly expanding sub-discipline in inorganic and organometallic chemistry. Ancillary ligand design has figured directly in the discovery of new bonding motifs and stoichiometric reactivity, as well as in the development of new catalytic protocols that have had widespread positive impact on chemical synthesis on benchtop and industrial scales. Ligand Design in Metal Chemistry presents a collection of cutting-edge contributions from leaders in the field of ligand design, encompassing a broad spectrum of ancillary ligand classes and reactivity applications. Topics covered include: Key concepts in ligand design Redox non-innocent ligands Ligands for selective alkene metathesis Ligands in cross-coupling Ligand design in polymerization Ligand design in modern lanthanide chemistry Cooperative metal-ligand reactivity P,N Ligands for enantioselective hydrogenation Spiro-cyclic ligands in asymmetric catalysis This book will be a valuable reference for academic researchers and industry practitioners working in the field of ligand design, as well as those who work in the many areas in which the impact of ancillary ligand design has proven significant, for example synthetic organic chemistry, catalysis, medicinal chemistry, polymer science and materials chemistry.
Book Synopsis Non-Noble Metal Catalysis by : Robertus J. M. Klein Gebbink
Download or read book Non-Noble Metal Catalysis written by Robertus J. M. Klein Gebbink and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: An expert overview of current research, applications, and economic and environmental advantages The study and development of new homogeneous catalysts based on first-row metals (Mn, Fe, Co, Ni, and Cu) has grown significantly due to the economic and environmental advantages that non-noble metals present. Base metals offer reduced cost, greater supply, and lower toxicity levels than noble metals?enabling greater opportunity for scientific investigation and increased development of practical applications. Non-Noble Metal Catalysis provides an authoritative survey of the field, from fundamental concepts and computational methods to industrial applications and reaction classes. Recognized experts in organometallic chemistry and homogeneous catalysis, the authors present a comprehensive overview of the conceptual and practical aspects of non-noble metal catalysts. Examination of topics including non-innocent ligands, proton-coupled electron transfer, and multi-nuclear complexes provide essential background information, while areas such as kinetic lability and lifetimes of intermediates reflect current research and shifting trends in the field. This timely book demonstrates the efficacy of base metal catalysts in the pharmaceutical, fine-chemical, and agrochemical industries, addressing both environmental and economic concerns. Providing essential conceptual and practical exploration, this valuable resource: -Illustrates how unravelling new reactivity patterns can lead to new catalysts and new applications -Highlights the multiple advantages of using non-noble metals in homogenous catalysis -Demonstrates how the availability of non-noble metal catalysis reduces costs and leads to immense savings for the chemical industry -Reveals how non-noble metal catalysis are more sustainable than noble metals such as palladium or platinum Non-Noble Metal Catalysis: Molecular Approaches and Reactions is an indispensable source of up-to-date information for catalytic chemists, organic chemists, industrial chemists, organometallic chemists, and those seeking to broaden their knowledge of catalytic chemistry.
Book Synopsis Photofunctionalization of Molecular Switch Based on Pyrimidine Ring Rotation in Copper Complexes by : Michihiro Nishikawa
Download or read book Photofunctionalization of Molecular Switch Based on Pyrimidine Ring Rotation in Copper Complexes written by Michihiro Nishikawa and published by Springer Science & Business Media. This book was released on 2013-12-16 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed description of photofunctionalization of molecular switch based on pyrimidine ring rotational isomerization in copper complexes bearing two bidentate ligands. The most important features of this work focus on the properties associated with the rotational isomerization based on the two possible coordination geometries at the copper center derived from two nitrogen atoms on the unsymmetrically substituted pyrimidine ring. The functions of systems such as dual emission and redox potential switching based on photo-driven rotation will be of particular interest to readers. Both the functions and the procedures for proving these phenomena are beneficial for the development of more functionalized systems based on material science, molecular science, nanoscience, nanotechnology, electrochemistry, photochemistry, coordination chemistry, physical chemistry, and related disciplines. The finding elucidated here holds promise for handling the photoprocesses of metal complexes, valid for both applications and novel properties. This system is expected make it possible to extract an electrochemical potential response from molecular switches, aiming to simulate the five senses of human beings at a single molecular level.
Book Synopsis Synthesis and Characterization of Ferrocene Based Ligand System and Their Complexes by :
Download or read book Synthesis and Characterization of Ferrocene Based Ligand System and Their Complexes written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferrocene based ligands find a wide range of application due to the fascinating structural properties and interesting electrochemical properties of the ferrocenyl moiety. Ferrocenyl derivatives find an unrivalled interest in the field of material chemistry, catalysis and bioorganometallic chemistry. Ferrocenyl-schiff base ligands and their metal complexes are increasingly gaining importance in research for their potential to exhibit a wide range of biological activity such as anti-tumor, anti bacterial and anti-fungal. Keeping in view the significance of this area the present research work is focused on designing ferrocene containing biologically active compounds of a typical organometallic nature and their metal complexes.
