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Reactivity And Mechanism Of Manganese And Related Group 6 7 And 8 Metal Complexes As Models In Homogeneous Oxygen Nitrogen And Ligand Transfer Reactions
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Book Synopsis Reactivity and Mechanism of Manganese and Related Group 6, 7 and 8 Metal Complexes as Models in Homogeneous Oxygen, Nitrogen and Ligand Transfer Reactions by : Hendrik Johannes Van der Westhuizen
Download or read book Reactivity and Mechanism of Manganese and Related Group 6, 7 and 8 Metal Complexes as Models in Homogeneous Oxygen, Nitrogen and Ligand Transfer Reactions written by Hendrik Johannes Van der Westhuizen and published by . This book was released on 2004 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Syntheses, Structures and Reactivity of the Group 6 and 7 Metal Complexes Containing Chelating Nitrogen Donor Ligands and Metal-Ligand Multiple Bonds by : 李富華
Download or read book Syntheses, Structures and Reactivity of the Group 6 and 7 Metal Complexes Containing Chelating Nitrogen Donor Ligands and Metal-Ligand Multiple Bonds written by 李富華 and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Syntheses, Structures and Reactivity of the Group 6 and 7 Metal Complexes Containing Chelating Nitrogen Donor Ligands and Metal-ligand Multiple Bonds" by 李富華, Fu-wa, Lee, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled "SYNTHESES, STRUCTURES AND REACTIVITY OF THE GROUP 6 AND 7 METAL COMPLEXES CONTAINING CHELATING NITROGEN DONOR LIGANDS AND METAL-LIGAND MULTIPLE BONDS" submitted by Lee Fu Wa for the degree of Doctor of Philosophy at the University of Hong Kong in September, 1997. ____________________________________________________________________ [Cr(CRMe )Cl ] (CRMe =meso-2,3,7,11,12-pentamethyl-3,7,11,17- 3 2 3 2+ tetraazabicyclo[11.3.1]-heptadeca-1(17),13,15-triene), [Cr(CRMe )Cl(H O)], 3 2 2+ + [Cr(CRMe )Cl(CH CN)] and [Cr(CRMe )(N )(OH)] are prepared. Upon addition 3 3 3 3 2+ 2+ of PhI=O to solutions of [Cr(CRMe )Cl(CH CN)] and [Cr(CRMe )Cl(H O)] 3 3 3 2 respectively in CH CN, the UV-visible absorption spectra of the two mixtures show similar isosbestic spectral changes attributed to the formation of V 2+ [Cr (CRMe )Cl(O)] . Addition of PhP causes the immediate recovery of 3 3 2+ [Cr(CRMe )Cl(CH CN)] as the isosbestic changes are reversed. Irradiation of 3 3 [Cr(CRMe )(N )(OH)] in acetonitrile with UV-visible light gives an azide-free 3 3 product, the FAB-MS of which shows a molecular ion peak indicative of V + + ([Cr (CRMe )(N)]ClO ). The UV-visible spectra of [Cr(CRMe )Cl ], 3 4 3 2 2+ 2+ [Cr(CRMe )Cl(H O)] and [Cr(CRMe )Cl(CH CN)] measured in water are 3 2 3 3 3+ similar to that of [Cr(CRMe )(H O) ] . Results from the conductivity measurement 3 2 2 + 2+ show that in water, [Cr(CRMe )Cl ], [Cr(CRMe )Cl(H O)] and 3 2 3 2 2+ [Cr(CRMe )Cl(CH CN)] behave as 3:1 electrolytes. The species which exists in 3 3 3+ water is likely to be the di-aquo complex [Cr(CRMe )(H O) ] . 3 2 2 2+ 2+ [Cr(CRMe )Cl(H O)] and [Cr(CRMe )Cl(CH CN)] are both found to give a 3 2 3 3 reversible oxidation couple at +1.11 V vs. SCE in aqueous solutions at pH=1 which is assigned to Cr(III)/(IV). iii t + The bis(imido) complexes [(TACN)M(N Bu) Cl] (M=Cr, Mo; TACN=1,4,7-triazacyclononane) and their 1,4,7-trimethyl derivatives are prepared, the crystal structures of which reveal the trans influence of the imido group. These 0 +/0 d species display a quasi-reversible couple at potentials 0.86 - 1.20 V vs. Cp Fe in acetonitrile assignable to a imido ligand-centred oxidation. (Me TACN)Mo(CO), 1,4,7-Tri((S)-2-methylbutyl)-1,4,7-triazacyclononane 3 3 * * * (L ) and L Mo(CO) are synthesized. (Me TACN)Mo(CO) and L Mo(CO) show 3 3 3 3 +/0 reversible oxidation couples at -0.26 V and -0.24 V vs. Cp Fe in CH CN 2 3 I/0 respectively which are assigned to Mo . The comparable electronic effect of * Me TACN and L in this system is therefore implied. 2+ [(Me TACN) Mn (μ-O)(μ-OCOCH ) ] is prepared and found to mediate 3 2 2 3 2 aziridination of styrene, methylstyrene, cis- and trans-stilbene, 1,1-diphenylethene and norbornene by PhI=NTs in CH Cl at 25 C. The nitrene transfer to cis- and 2 2 trans-stilbene is found to be stereoselective to exclusively give the trans-aziridine product. + + [(Me TACN)(CO) M CPh] (M=Mo, W) and [(TACN)(CO) Mo CPh] 3 2 2 are prepared. [(Me TACN)(CO) M CPh] (M=Mo, W) exhibit a reversible 3 2 +/0 reduction couple at -2.15 V vs Fe Cp and an irreversible wave at 0.77 V vs +/0 Fe Cp, which are ascribed to a reduction centred at the phenyl ring and oxidation of the terminal CO respectively. Treatment of Cl(
Book Synopsis Metals and Ligand Reactivity by : Edwin C. Constable
Download or read book Metals and Ligand Reactivity written by Edwin C. Constable and published by Wiley-VCH. This book was released on 1996-01-18 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edwin C. Constable Metals and Ligand Reactivity An Introduction to the Organic Chemistry of Metal Complexes New, revised and expanded edition This book is a highly readable introduction to the reactions of coordinated ligands, which have become a useful tool in organic synthesis. Bridging the gap between the traditional fields, this text presents the basic concepts of ligand reactivity as well as synthetic applications of these reactions. Topics covered include Principles of metal-ligand interaction Reactions of coordinated ligands with nucleophiles and electrophiles Oxidation and reduction of coordinated ligands Cyclic and encapsulating ligands, template effects and supramolecular chemistry Carefully selected examples, lucidly designed figures and schemes as well as numerous study problems make this book an ideal guide for students and practitioners of organic synthesis. References to further reading are also included.
Book Synopsis Syntheses, Structures and Reactivity of the Group 6 and 7 Metal Complexes Containing Chelating Nitrogen Donor Ligands and Metal-ligand Multiple Bonds by : Fu-wa Lee
Download or read book Syntheses, Structures and Reactivity of the Group 6 and 7 Metal Complexes Containing Chelating Nitrogen Donor Ligands and Metal-ligand Multiple Bonds written by Fu-wa Lee and published by . This book was released on 1997 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanisms of Reactions of Metal Complexes by : Debabrata Banerjea
Download or read book Mechanisms of Reactions of Metal Complexes written by Debabrata Banerjea and published by Royal Society of Chemistry. This book was released on 2022-09-21 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction Mechanisms of Metal Complexes in Solution provides a comprehensive overview of an often-overlooked research area. Despite its importance and recent reshaping of the field, many inorganic chemists have lost an appreciation for the significance of stability constants and the thermodynamic aspects of complex formation. Ideal for newcomers and established researchers in the field this book is a complete treatment of the area covering advanced topics with relevance to biomedical applications, extraction metallurgy, food chemistry and a wealth of other industrial processes and research areas. The book will be of particular interest to postgraduates with an interest in coordination chemistry, catalysis, supramolecular chemistry, metallobiology and related aspects of biochemistry.
Book Synopsis The Organometallic Chemistry of the Transition Metals by : Robert H. Crabtree
Download or read book The Organometallic Chemistry of the Transition Metals written by Robert H. Crabtree and published by John Wiley & Sons. This book was released on 2005-06-14 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated and expanded to reflect recent advances, this Fourth Edition of the classic text provides students and professional chemists with an excellent introduction to the principles and general properties of organometallic compounds, as well as including practical information on reaction mechanisms and detailed descriptions of contemporary applications.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mn Manganese written by L.J. Boucher and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Manganese, Technetium and Rhenium by : R. D. W. Kemmitt
Download or read book The Chemistry of Manganese, Technetium and Rhenium written by R. D. W. Kemmitt and published by Elsevier. This book was released on 2016-06-06 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemistry of Manganese, Technetium and Rhenium deals with the chemistry of manganese, technetium, and rhenium and covers topics ranging from the occurrence and metallurgy of all three elements to their properties and compounds. Among the compounds considered are manganese halides, cyanides, and oxides as well as carbonyls and organometallic compounds, thiocyanate complexes, and chalcogenides. This volume is divided into three sections and opens with an overview of the history and occurrence of manganese, along with its metallurgy, uses, and properties. A variety of manganese compounds are examined, including halides and cyanides, sulfides and selenides, tellurides and borates, and nitrites and nitrates. The next two sections focus on technetium and rhenium, their discovery, isolation, and general properties. Compounds of both elements are described, including hydridic compounds, cyanide and thiocyanate complexes, and oxoacids and salts. Perrhenic acid and the perrhenates are also discussed, together with chalcogenides and refractory compounds, carbonyls, and organometallic derivatives. This book will be a valuable source of information for inorganic chemists.
Download or read book Mn Manganese written by L.J. Boucher and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of system-number "Manganese", Part B, which de- scribes the Element Manganese, has been completed. Also completed is Part C, describing the compounds, with 10 volumes. Part A will present the history and occurence of manganese. Volume A 1 on the history has already been published, the other volumes dealing with occurence of manganese are in preparation. Part D is devoted to the coordination compounds. Part D 1, D 2, D 3, D 4, D 5 and D 6 thereof are already available. The present volume "Manganese D 7" continues the description of the coordination compounds. Complexes with nitriles, with nitro-hydrocarbons, and with ligands containing sulfur, selenium or tellurium are described. Many of the coordination compounds containing sulfur are of analytical or biological interest. A formula index lists the ligands and the empirical formulas.
Book Synopsis Pincer Compounds by : David Morales-Morales
Download or read book Pincer Compounds written by David Morales-Morales and published by Elsevier. This book was released on 2018-04-11 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Directory of Graduate Research by : American Chemical Society. Committee on Professional Training
Download or read book Directory of Graduate Research written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1983 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Coordination Chemistry II by : J. A. McCleverty
Download or read book Comprehensive Coordination Chemistry II written by J. A. McCleverty and published by Elsevier Science. This book was released on 2003-12-17 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Coordination Chemistry II (CCC II) is the sequel to what has become a classic in the field, Comprehensive Coordination Chemistry, published in 1987. CCC II builds on the first and surveys new developments authoritatively in over 200 newly comissioned chapters, with an emphasis on current trends in biology, materials science and other areas of contemporary scientific interest.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1990 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Part I. Reactivity of O-xylylene and Exo-methylenecyclohexadienyl Complexes of Manganese. Part II. Structural and Catalytic Aspects of Halo-, Nitrido-, and Imido-complexes of the Group VIII Transition Metals by : Kevin Jon Roesselet
Download or read book Part I. Reactivity of O-xylylene and Exo-methylenecyclohexadienyl Complexes of Manganese. Part II. Structural and Catalytic Aspects of Halo-, Nitrido-, and Imido-complexes of the Group VIII Transition Metals written by Kevin Jon Roesselet and published by . This book was released on 1988 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ruthenium(II) and Manganese(I) Catalyzed Organic Transformations Via Hydrogen Transfer Reactions by : Akash Kaithal
Download or read book Ruthenium(II) and Manganese(I) Catalyzed Organic Transformations Via Hydrogen Transfer Reactions written by Akash Kaithal and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
