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Book Synthesis Reactivity and NMR Trends of Early Transition Metal Compounds

Download or read book Synthesis Reactivity and NMR Trends of Early Transition Metal Compounds written by Tabitha Marie Cook and published by . This book was released on 2016 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses of three different subjects. The first is the synthesis and characterization of heptacoordinate amidinate compounds. Heptacoordinate compounds are not common, but their structures have been studied. Group 4 amidinate compounds have been used as precursors in the CVD/ ALD processes. Ancillary ligands, such as amidinates, have been used to reduce air-sensitivity of complexes. Reactions of these complexes with water have been used to make metal oxide thin films. In the first study, the complexes Zr[MeC(Ni̳Pr)2]3Cl [zirconium trisamidinate chloride], Hf[MeC(Ni̳Pr)2]3Cl [hafnium trisamidinate chloride], Zr[MeC(Ni̳Pr)2]3Me [zirconium trisamidinate methyl], Hf[MeC(Ni̳Pr)2]3Me [hafnium trisamidinate methyl], Zr[MeC(Ni̳Pr)2]3Et [zirconium trisamidinate ethyl], and Hf[MeC(Ni̳Pr)2]3Me [hafnium trisamidinate methyl] have been synthesized and characterized. The three amidinate ligands bind to the metal centers in a propeller-like fashion. This allows for [lambda] and [delta] enantiomers, which undergo fast exchange in solution. All of these complexes were also found to react with water in air to form Zr[MeC(Ni̳Pr)2]3OH [zirconium trisamidinate hydroxyl] or Hf[MeC(Ni̳Pr)2]3OH [hafnium trisamidinate hydroxyl] complexes. The second portion of the dissertation focuses on the reactions of tungsten alkylidyne complexes with water. When W(≡CSiMe3)(CH2SiMe3)3 [tungsten neosilyl neosilylidyne] is reacted with water at room temperature, a tungsten trimer was formed and characterized via NMR spectroscopies and single-crystal X-ray diffraction. The reaction of a second complex, W(≡Ct̳Bu)(Ot̳Bu)3 [tungsten alkoxide neopentylidyne] with water was studied via NMR and mass spectrometries. While only one complex formed via the NMR-scale reactions, several more were identified using the DART ionizer to react W(≡Ct̳Bu)(Ot̳Bu)3 [tungsten alkoxide neopentylidyne] with water in air before being analyzed via MS. The last subject focuses on the chemical shift trends of d0 [d0] metal complexes. Two trends have been identified and will be discussed in Part 5. The first trend, usually pertaining to hydride and alkyl complexes, is a downfield shift in the peaks of the [alpha] atoms in first- and third-row metals from those of the second-row analogs. The first trend, which usually relates to alkylidene, alkylidyne, oxo, and fluoro complexes, is an upfield shift in the peaks of the [alpha] atoms in first- and third-row metals from those of the second-row analogs.

Book Synthesis Characterization and Reactivity of Transition metal Dihydrogen Complexes of Fe Ru and W

Download or read book Synthesis Characterization and Reactivity of Transition metal Dihydrogen Complexes of Fe Ru and W written by Lori Ruth Ann Stepan Van der Sluys and published by . This book was released on 1991 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Reactivity of Early Transition Metal Complexes Containing Multiple Metal to Carbon Nitrogen Or Oxygen Bonds

Download or read book Synthesis and Reactivity of Early Transition Metal Complexes Containing Multiple Metal to Carbon Nitrogen Or Oxygen Bonds written by Scott M. Rocklage and published by . This book was released on 1982 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book New Pathways for Organic Synthesis

Download or read book New Pathways for Organic Synthesis written by H.M. Colquhoun and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continually growing contribution of transition metal chemistry to synthetic organic chemistry is, of course, widely recognized. Equally well known is the difficulty in keeping up-to-date with the multifarious reactions and procedures that seem to be spawned at an ever-increasing rate. These can certainly be summarized on the basis of reviews under the headings of the individual transition metals. More useful to the bench organic chemist, however, would be the opposite type of concordance based on the structural type of the desired synthetic product. This is the approach taken in the present monograph, which presents for each structural entity a conspectus of the transition metal-mediated processes that can be employed in its production. The resulting comparative survey should be a great help in devising the optimum synthetic approach for a particular goal. It is presented from an essentially practical viewpoint, with detailed direc tions interspersed in the Houben-Weyl style. The wide scope of the volume should certainly encourage synthetic organic chemists to utilize fully the range and versatility of these transition metal-mediated processes. This will certainly be a well-thumbed reference book! R. A. RAPHAEL Cambridge University v Preface In recent years an enormous amount of work has been done on the catalysis of organic reactions by various transition metal species and on the organic reactivity of organo-transition-metal compounds.

Book Transition Metal Compounds

Download or read book Transition Metal Compounds written by Sajjad Haider and published by BoD – Books on Demand. This book was released on 2021-06-09 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores synthesis, structural changes, properties, and potential applications of transition metal (TM) compounds. Over three sections, chapters cover such topics as the synthesis of pentoxide vanadium (V2O5), the effect of TM compounds on structural, dielectric properties and high-temperature superconductors, and TM-doped nanocrystals (NCs).

Book Novel Chemistry of Low valent Early Transition Metal Complexes

Download or read book Novel Chemistry of Low valent Early Transition Metal Complexes written by Mikhail Victorovich Barybin and published by . This book was released on 1999 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Reactivity of Late Transition Metal Complexes Featuring a Bis 8 quinolyl methylsilyl Ligand

Download or read book Synthesis and Reactivity of Late Transition Metal Complexes Featuring a Bis 8 quinolyl methylsilyl Ligand written by Preeyanuch Sangtrirutnugul and published by . This book was released on 2007 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Preparation and Reactivity of

Download or read book Preparation and Reactivity of written by Christopher Peter Gerlach and published by . This book was released on 1997 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transition Metal Reagents and Catalysts

Download or read book Transition Metal Reagents and Catalysts written by Jiro Tsuji and published by . This book was released on 2000-02-29 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition Metal Reagents and Catalysts Innovations in Organic Synthesis Jiro Tsuji Emeritus Professor, Tokyo Institute of Technology, Japan Numerous innovative and practical synthetic methods using transition metal complexes as either catalysts or reagents have been developed over the last 35 years. Transition Metal Reagents and Catalysts combines the varied applications of transition metal complexes in a unique and timely book in this rapidly advancing area of organic synthesis. This text is an easily understandable and enjoyable read for organic chemists who are not yet familiar with organo-transition metal chemistry. Transition Metal Reagents and Catalysts presents: * Complete coverage of nearly 35 years of transition metal complex chemistry * An in-depth treatment of many innovative synthetic methodologies * A rational classification of all reactions according to substrates and reaction mechanisms * Examples of important applications of transition metal catalysed reactions. A knowledge of organic synthesis using transition metal complexes is a must for all synthetic organic chemists. Written for chemists who wish to apply novel synthetic methods using transition metal complexes to solve problems in organic and pharmaceutical chemistry, such as synthesis of fine and bulk chemicals and natural products, Transition Metal Reagents and Catalysts is an essential reference source and an indispensible research companion.

Book Transition Metals in the Synthesis of Complex Organic Molecules

Download or read book Transition Metals in the Synthesis of Complex Organic Molecules written by Louis S. Hegedus and published by . This book was released on 2010 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of Transition Metals in the Synthesis of Complex Organic Molecules is a comprehensive revision and significant expansion of the second edition. The clear and systematic approach to the formation, manipulation, and reactivity of organometallic complexes has been maintained. The book is divided into 10 chapters starting with general formalisms, electron counting, and basic principles of organometallic reaction mechanisms. The organic chemistry of transition metals is then presented by class of metal complex, with many examples of applications in the synthesis of complex natural products and pharmaceuticals. The book is ideal for advanced undergraduate and graduate students as well as all practicing synthetic organic chemists. It is written for organic chemists and offers an easy entry into the field of organotransition metal chemistry without requiring a background in inorganic chemistry.

Book Synthesis and Reactivity of Early Transition Metal Complexes

Download or read book Synthesis and Reactivity of Early Transition Metal Complexes written by LeGrande Mancel Slaughter (III) and published by . This book was released on 2000 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: