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Synthesis And Solid State Reactions Of Substituted Cyclopentadienyl Complexes Of Rhenium Tungsten And Molybdenum
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Book Synopsis Synthesis and Solid-state Reactions of Substituted Cyclopentadienyl Complexes of Rhenium, Tungsten and Molybdenum by : Lin Cheng
Download or read book Synthesis and Solid-state Reactions of Substituted Cyclopentadienyl Complexes of Rhenium, Tungsten and Molybdenum written by Lin Cheng and published by . This book was released on 1997 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crystallographic and Solid-state Study of Substituted Cyclopentadienyl Rhenium Complexes by : Grayson W. Stowell
Download or read book Crystallographic and Solid-state Study of Substituted Cyclopentadienyl Rhenium Complexes written by Grayson W. Stowell and published by . This book was released on 2001 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Novel Substitution Chemistry of Cyclopentadienyl Complexes of Rhenium by : T. Warthen Douglass
Download or read book Synthesis and Novel Substitution Chemistry of Cyclopentadienyl Complexes of Rhenium written by T. Warthen Douglass and published by . This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Organometallic Chemistry II, Volume 14 by : Edward W. Abel
Download or read book Comprehensive Organometallic Chemistry II, Volume 14 written by Edward W. Abel and published by Elsevier. This book was released on 2002-09-10 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication Comprehensive Organometallic Chemistry in 1982, studies on the chemistry of molecules with carbon-metal bonds have continued to expand rapidly. This is due to many factors, ranging from the sheer intellectual challenge and excitement provided by the continuing production of novel results, which demand new ideas, through to the successful application of organometallic species in organic syntheses, the generation of living catalysts for polymerization, and the synthesis of precursors for materials employed in the electronic and ceramic industries. These factors led to the publication of the updated Comprehensive Organometallic Chemistry II. The original work serves as a basis for new volumes, focusing on organometallic chemistry reported since 1982, with reference back to the original work when necessary. For ease of use the new volumes maintain the same general structure as employed previously but reflect the changes in substance and direction the field has undergone in the last ten years. This book will serve as a pivotal reference point for new work and will function to generate new ideas and perceptions for the continued advance of what will surely continue as a vibrant area of chemistry.
Book Synopsis Synthesis and Reactions of a Series of Cyclopentadienyl Molybdenum Complexes with Sulfur Ligands by : Julie S. Gabay
Download or read book Synthesis and Reactions of a Series of Cyclopentadienyl Molybdenum Complexes with Sulfur Ligands written by Julie S. Gabay and published by . This book was released on 1991 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Some Disubstituted Cyclopentadienyl Rhenium Complexes as Potential Candidates in Semiconductive Materials by : Chloe Elizabeth Vernon
Download or read book Synthesis and Characterization of Some Disubstituted Cyclopentadienyl Rhenium Complexes as Potential Candidates in Semiconductive Materials written by Chloe Elizabeth Vernon and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 2000, when the Nobel Prize in Chemistry as awarded for conductive polymer research few studies have been performed concerning the conductive capabilities of discrete organometallic compounds. For this project, organometallic compounds were formed specifically with a transition metal included in the structure. Through oxidation and reduction reactions, the variation in the electrical conductivity could allow for an analysis of whether this unique structure would allow for tunability. The goal of this research was to begin with aromatic substituted fulvenes and perform various multistep synthesis processes, utilizing thallium salt intermediates, to produce several disubstituted cyclopentadienyl rhenium complexes. In this project, different rhenium complexes were synthesized accurately and with high yield utilizing methods that were straightforward and generated replicable results. Through melting range analysis, IR spectroscopy, 13C NMR, and 1H -NMR, the identity and purity of these compounds were confirmed.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactions of Neutral Tungsten and Rhenium Formyl Complexes by : William Edward Sattich
Download or read book Synthesis and Reactions of Neutral Tungsten and Rhenium Formyl Complexes written by William Edward Sattich and published by . This book was released on 1989 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Characterisation of Bis(cyclopentadienyl) Molybdenum and Tungsten Dithiolene Complexes by : Alexandra L. Whalley
Download or read book The Synthesis and Characterisation of Bis(cyclopentadienyl) Molybdenum and Tungsten Dithiolene Complexes written by Alexandra L. Whalley and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Reactions of Molybdenum(II) and Tungsten(II) Alkyne Complexes by : Elaine M. Armstrong
Download or read book The Synthesis and Reactions of Molybdenum(II) and Tungsten(II) Alkyne Complexes written by Elaine M. Armstrong and published by . This book was released on 1989 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1997 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Migratory Insertion Reactions of Molybdenum and Tungsten Carbene Complexes by : Gary W. Bentley
Download or read book Synthesis and Migratory Insertion Reactions of Molybdenum and Tungsten Carbene Complexes written by Gary W. Bentley and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of High Oxidation State Tungsten and Molybdenum Olefin Metathesis Catalysts Bearing New Imido Ligands by : Jonathan Clayton Axtell
Download or read book Synthesis and Reactivity of High Oxidation State Tungsten and Molybdenum Olefin Metathesis Catalysts Bearing New Imido Ligands written by Jonathan Clayton Axtell and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 1 details the synthesis of tungsten imidoalkylidene compounds bearing strongly electron-withdrawing imido ligands. An alternative synthesis involving the treatment of WCl6 with 4 equivalents of N-trimethylsilyl-substituted anilines and subsequent workup with 1,2-dimethoxyethane (DME) has been employed to form complexes of the type W(NAr)2C12(dme); syntheses employing WO2C 2(dme) as the tungsten precursor were unsuccessful. Alkylation with neopentylmagnesium chloride (ClMgNp) and subsequent treatment with trifluoromethanesulfonic acid (HOTf) affords imidoalkylidene species W(NAr)(CHCMe 3)(OTf)2(dme) (OTf = trifluoromethanesulfonate); analogous neophylidene ([W]CHCMe 2Ph) species could not be made under these conditions. Treatment of these compounds with two equivalents of LiO(2,6-(CHCPh 2)C6H3)-Et2O affords the bisaryloxide complexes of the type W(NAr)(CHCMe3)(OR)2. Ring-Opening Metathesis Polymerization (ROMP) studies using a series of these bisaryloxides show that rates of ROMP increase as the electron-withdrawing power of the substituents on the imido ligand increase if steric bulk about the metal center is held constant. A similar trend between two bisaryloxides is observed for anti-to-syn alkylidene rotation rates at 50*C in toluene-d8 . Difficulties synthesizing bis-pyrrolide complexes of the type W(NAr)(CHCMe3)(pyr)2 precluded their use as catalyst precursors; some MAP species containing the more sterically encumbering 2,5-dimethylpyrrolide ligand are presented and the metathesis activity of MAP species bearing the 2,5-dimethylpyrrolide ligand is discussed. Chapter 2 introduces Mo and W complexes bearing the current extreme in sterically bulky imido ligands, the NHIPT (HIPT = 2,6-(2,4,6-iPr 3CH2)CH3) ligand, in an effort to generate all anti alkylidene species. A non-traditional synthetic route is employed in order to install this ligand first as an anilide, and after subsequent proton transfer, as an imido ligand to form a mixed imido species of the type M(NHIPT)(N'Bu)(NH'Bu)Cl. Addition of one equivalent of 2,6-lutidinium chloride, followed by alkylation affords dialkyl species M(NHIPT)(N'Bu)Np 2, and treatment with three equivalents of pyridinium chloride yields all anti imidoalkylidene dichloride species as mono-pyridine adducts, M(NHIPT)(CHCMe 3)C 2(py) (M = Mo, W). General reactivity, including strategies for removal of the pyridine adduct as well as substitution and metathesis chemistry, are discussed. ROMP of MPCP (MPCP = 3-methyl-3-phenylcyclopropene) by a Mo-based MAP species bearing the NHIPT ligand yields predominantly cis,syndiotactic poly(MPCP) and in the homo-metathesis of 1 -octene yields ~81% cis-7-tetradecene. The possible source of trans olefinic product is addressed. Chapter 3 presents the synthesis of the first (1-adamantyl)imido species of tungsten. The functional equivalent of common bisimido precursors for other Mo/W alkylidene species, [W(NAd) 2C 2(AdNH2)1 2, is shown to be a dimer stabilized by hydrogen-bonding interactions between adamantylamine protons and adjacent chlorides bound to the second metal of the dimer. Subsequent alkylation with ClMgNp affords the expected dialkyl species, and treatment with three equivalents of 3,5-lutidinium chloride affords imidoalkylidene complex W(NAd)(CHCMe 3)(C) 2(lut)2 (lut = 3,5-dimethylpyridine). The most desirable synthetic route toward monoalkoxide pyrrolide (MAP) species proceeds through a monoaryloxide monochloride intermediate W(NAd)(CHCMe 3)(Cl)(OAr)(lut) (Ar = 2,6-(2,4,6-Me 3)C6H3, 2,6-(2,4,6-'Pr 3)C6H3). Removal of lutidine with B(C6 F5 )3 and subsequent treatment with lithium pyrrolide affords W(NAd)(CHCMe3)(pyr)(OAr) (pyr = pyrrolide); 2,5-dimethylpyrrolide analogues (W(NAd)(CHCMe3)(Me2pyr)(OAr) can be accessed via protonolysis by HOAr from W(NAd)(CHCMe3)(Me2pyr)2(lut).
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1995 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Organometallic Chemistry II by : E.W. Abel
Download or read book Comprehensive Organometallic Chemistry II written by E.W. Abel and published by Pergamon. This book was released on 1995-10-13 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: . Covers the literature in depth from 1982-1994, thus building on the original nine volumes . 14 volume set . 8750 pages approx . Volumes 1-9 provide a detailed account of the organic chemistry of both main group and transition elements . Volume 10 deals with compounds containing heteronuclear metal-metal bonds . Volume 11 describes the use of main group organometallic compounds in organic synthesis . Volume 12 is devoted to the use of transition metal orgnometallic compounds in organic synthesis . Volume 13 consists of a comprehensive index of all organometallic structures studied by diffraction methods . Volume 14 contains subject and formula indexes covering Volumes 1-12