Download or read book Alkyl and Carbonyl Complexes of Molybdenum and Tungsten written by K. E. Hill and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molybdenum II and Tungsten II Carbonyl halide Complexes written by Teresa L. Tonker and published by . This book was released on 1986 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photochemically Induced Degradation Reactions of Some Alkyl and Aryl Metal Carbonyl Complexes of Chromium Molybdenum Tungsten and Manganese written by Thomas Emmett Gismondi and published by . This book was released on 1982 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Structure and Applications of Metallacyclic Alkylidene Complexes of Molybdenum and Tungsten written by Kapil Shyam Lokare and published by . This book was released on 2009 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of High Oxidation State Tungsten and Molybdenum Complexes Containing Phenoxide Thiolate Alkyl Cyclopentadienyl and Dinitrogen Ligands written by Richard Michael Kolodziej and published by . This book was released on 1989 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry of Bis alkyl Nitrosyl and Related Complexes of Molybdenum and Tungsten written by Neil H. Dryden and published by . This book was released on 1990 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molybdenum II and Tungsten II Carbonyl Halide Complexes as Synthetic Reagents written by Paul Bullard Winston and published by . This book was released on 1982 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some New Seven coordinate Tungsten II and Molybdenum II Carbonyl Complexes Containing Mono and Bidentate N S Donor Ligands written by S. Hughes and published by . This book was released on 1994 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Preparation and Properties of Some D1 Molybdenum and Tungsten Compounds written by Donald Paul Rillema and published by . This book was released on 1969 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Organometallic Chemistry written by and published by Academic Press. This book was released on 1988-02-01 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Organometallic Chemistry
Download or read book Molybdenum and Tungsten Metal Organic Decomposition Complex Synthesis and Characterization written by Kaitlyn Clark and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Synthesis and characterization of silver, molybdenum and tungsten metal organic decomposition complexes is reported. Molybdenum and tungsten are of interest, in order to expand 3D printing capabilities, by providing precursors capable of forming metal structures with superior chemical and mechanical properties. In addition to using known synthetic pathways using silver precursors, molybdenum hexacarbonyl, tungsten hexacarbonyl were reacted with three ligands: ethylenediamine, diethylenetriamine, and triethylamine to develop MOD complexes. The MOD products were characterized by NMR, FTIR and thermogravimetric (TGA) analysis. Thermal decomposition mechanisms were studied by TGA. Whereas the silver MOD complexes were found to decompose to metallic silver at temperatures lower than 200°C in both inert and atmospheric conditions, the molybdenum diethylenetriamine complex and the molybdenum triethylamine complex decomposed to molybdenum metal, and only in inert conditions at temperatures well in excess of 200°C. The other molybdenum complex, as well as all of the tungsten complexes decomposed to their oxide forms at temperatures greater than 600°C in inert and atmospheric conditions. Triethylamine-tungsten complex was found to sublime at 110°C. A hard-soft acid-base theoretical analysis indicates that, as opposed to the silver complexes where electron density is more localized on the metal center, electron density is withdrawn from the metal centers in the case of molybdenum and tungsten complexes. Additional stability provided by carbonyl p-backbonding for the carbonyl ligands prevented low temperature decomposition. As a result, this work shows that molybdenum and tungsten hexacarbonyls are not suitable starting materials for creating MOD complexes when one or more of the carbonyl groups remain on the complex. The complexes may, however, be used for metal oxide deposition instead of metal deposition."--Abstract.
Download or read book High Oxidation State Molybdenum and Tungsten Imido Alkylidene and Metallacycle Chemistry written by W. C. Peter Tsang and published by . This book was released on 2004 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) unsubstituted tungstacyclobutane complexes (82), ethylene complexes (84), tungstacyclopentane complexes (86), and a heterochiral methylene dimer (85a). The tungstacyclopentane complexes catalyzed slow dimerization of ethylene to 1-butene. The observation of the methylene dimer provides the first direct evidence of a bimolecular decomposition pathway for methylene complexes. Chapter 3 Racemic and enantiomerically pure molybdenum alkylimido alkylidene complexes, Mo(NAd)(CHCMe2Ph)(Biphen) (19d, Ad = 1-adamantyl) and Mo(NAd)(CHCMe2Ph)[Trip]-(THF) (20d) were prepared and structurally characterized. Complex 19d was observed almost exclusively as a syn alkylidene isomer, in contrast with 20d which was observed almost exclusively as an anti-THF adduct. Complexes 19d and 20d are the only reported chiral alkylimido alkylidene complexes for enantioselective olefin metathesis reactions. Complex 19d is the first crystallographically characterized four-coordinate adamantylimido alkylidene complex in its base-free form. It offers unique reactivity and selectivity profiles in tandem AROM/RCM and AROM/CM reactions. Complex 19d is compatible with a variety of common functional groups, including boron-containing reagents. Van't Hoff analyses suggest that the bias toward syn-19d isomer is entropy-driven. Chapter 4: Solvent- and base-free molybdenum methylene complexes, Mo(NAr)(Biphen)(CH2) (114a, Ar = 2,6-i-Pr2C6H3) and Mo(NAd)(Biphen)(CH2) (114d, Ad = 1-adamantyl) ...
Download or read book Analytical Chemistry of Molybdenum and Tungsten written by W. T. Elwell and published by Elsevier. This book was released on 2013-10-22 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Series of Monographs in Analytical Chemistry, Volume 47: Analytical Chemistry of Molybdenum and Tungsten describes the chemical and instrumental methods of analysis of molybdenum and tungsten. This book is composed of 15 chapters that particularly consider detailed methods for determining these metals in typical samples and their alloys by both classical and modern techniques. The opening chapters discuss the history, occurrence, physico-chemical properties, and applications of molybdenum and tungsten. The succeeding chapters deal with the metals’ sampling, decomposition, separation, and qualitative detection. Considerable chapters are devoted to various chemical and instrumental methods for their analysis, including gravimetry, titrimetry, colorimetry, polarography, amperometry, coulometry, emission and atomic absorption spectroscopy, X-ray spectrophotometry, mass spectrometry, and radiochemical methods. The concluding chapter examines the determination of impurities and alloying elements. This book will prove useful to analytical and inorganic chemists, as well as analytical and inorganic chemistry students.
Download or read book Six and Seven coordinate Tungsten II and Molybdenum II Carbonyl Dithiocarbamate Complexes written by Bennett C. Ward and published by . This book was released on 1980 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Complexes of Molybdenum and Tungsten in Materials Chemistry written by Emma Elizabeth Parker and published by . This book was released on 1996 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Aspects of the Carbonyl Chemistry of Molybdenum and Tungsten written by R. Whyman and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Molybdenum and Tungsten Carbonyl Compounds Containing the Bidentate Chelating Thiomethoxymethyl Group and Tridentate Chelating Gallate Ligands written by and published by . This book was released on 1980 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
