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Synthesis And Reactivity Of Tungsten Germyl Silyl Complexes And A New Approach To Spin On Glass Films Of Silicon Dioxide
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Book Synopsis Synthesis and Reactivity of Tungsten Germyl Silyl Complexes and a New Approach to Spin-on-glass Films of Silicon Dioxide by : Lisa Kiernan Figge
Download or read book Synthesis and Reactivity of Tungsten Germyl Silyl Complexes and a New Approach to Spin-on-glass Films of Silicon Dioxide written by Lisa Kiernan Figge and published by . This book was released on 1996 with total page 174 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 1996 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Tungsten (VI) Alkylidene and Metallacyclobutane Complexes by : Jerald Feldman
Download or read book Synthesis and Reactivity of Tungsten (VI) Alkylidene and Metallacyclobutane Complexes written by Jerald Feldman and published by . This book was released on 1989 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Reactivity of Tungsten (VI) Alkylidynes and Tungsten (IV) Complexes by : Mark L. Listemann
Download or read book The Synthesis and Reactivity of Tungsten (VI) Alkylidynes and Tungsten (IV) Complexes written by Mark L. Listemann and published by . This book was released on 1985 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Tungsten Imido Complexes from a Zwitterionic Tungsten Zero Amido Precursor by : Scott Taylor Massey
Download or read book Synthesis and Reactivity of Tungsten Imido Complexes from a Zwitterionic Tungsten Zero Amido Precursor written by Scott Taylor Massey and published by . This book was released on 1995 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Phenylimido and Alkylidyne Complexes of Tungsten (VI) by : Steven Frank Pedersen
Download or read book Synthesis and Reactivity of Phenylimido and Alkylidyne Complexes of Tungsten (VI) written by Steven Frank Pedersen and published by . This book was released on 1983 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Cyclopentadienyl Complexes of Tungsten in Its Higher Oxidation States by : Robert Clark Murray
Download or read book Synthesis and Reactivity of Cyclopentadienyl Complexes of Tungsten in Its Higher Oxidation States written by Robert Clark Murray and published by . This book was released on 1985 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Reactivity of Ynolate and Ynolester Tungsten Complexes by : Kimberly Ann Belsky
Download or read book The Synthesis and Reactivity of Ynolate and Ynolester Tungsten Complexes written by Kimberly Ann Belsky and published by . This book was released on 1990 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Reactivity of Methylidyne and Hydride Complexes of Tungsten by : Steven J. Holmes
Download or read book The Synthesis and Reactivity of Methylidyne and Hydride Complexes of Tungsten written by Steven J. Holmes and published by . This book was released on 1983 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Multiply Bonded Tungsten Dimers by : Lynda Gail Sturgeoff
Download or read book Synthesis and Reactivity of Multiply Bonded Tungsten Dimers written by Lynda Gail Sturgeoff and published by . This book was released on 1982 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Low Valent Tungsten Hydride Complexes with Alkylidyne Or Nitrosyl Ligands by : Franck Furno
Download or read book Synthesis and Reactivity of Low Valent Tungsten Hydride Complexes with Alkylidyne Or Nitrosyl Ligands written by Franck Furno and published by . This book was released on 2001 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemistry of Silicon-containing Compounds and Molecular Approaches to Materials for Silicon-based Microelectronics by : Jaime Renee Blanton
Download or read book Chemistry of Silicon-containing Compounds and Molecular Approaches to Materials for Silicon-based Microelectronics written by Jaime Renee Blanton and published by . This book was released on 2003 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Reactivity and Theoretical Studies of Tungsten, Rhenium, and Osmium Complexes Containing Multiply-bonded Ligands by : Mark Hopkins Scholfield
Download or read book Synthesis, Reactivity and Theoretical Studies of Tungsten, Rhenium, and Osmium Complexes Containing Multiply-bonded Ligands written by Mark Hopkins Scholfield and published by . This book was released on 1991 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Rhodium and Iridium Complexes Supported by New Silyl Pincer Ligands by : MacLean Darren F.
Download or read book Synthesis and Reactivity of Rhodium and Iridium Complexes Supported by New Silyl Pincer Ligands written by MacLean Darren F. and published by . This book was released on 2008 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactions of Tungsten Complexes by : Dariusz Wodka
Download or read book Synthesis and Reactions of Tungsten Complexes written by Dariusz Wodka and published by . This book was released on 1997 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Reactivity of Some Tungsten Carbene Complexes by : Ruth A. Pickering
Download or read book Synthesis and Reactivity of Some Tungsten Carbene Complexes written by Ruth A. Pickering and published by . This book was released on 1980 with total page 234 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).