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The preparation and characterization of tungsten and molybdenum sulfide fluorides

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dc.contributor.advisor Gerken, Michael
dc.contributor.author Nieboer, Jared
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2008-09-25T20:45:48Z
dc.date.available 2008-09-25T20:45:48Z
dc.date.issued 2007
dc.identifier.uri http://hdl.handle.net/10133/668
dc.description xv, 131 leaves : ill. ; 29 cm. en
dc.description.abstract Silanethiolate salts of K(18-crown-6)+, N(CH3)4 +, Cs+, K+ were synthesized and characterized by vibrational and NMR spectroscopy. The [N(CH3)4][SSi(CH3)3] salt was used to prepare the new [N(CH3)4][WSF5] salt directly from WF6. Alternatively, [N(CH3)4][WSF5] was prepared by the reaction of WSF4 with [N(CH3)4][F]. Pure WSF4 was prepared via a facile new route and was fully characterized by Raman, infrared, and 19F NMR spectroscopy, and an improved crystal structure. The Lewis-acid properties of WSF4 were studied in reactions with pyridine, yielding the new WSF4·C5H5N adduct, which was studied by Raman and 19F NMR spectroscopy. A 2:1 stoichiometry of WSF4 and [N(CH3)4][F] yielded W2S2F9 - in solution. The novel W2SOF9 - anion was characterized in solution by 19F NMR spectroscopy. Molybdenum sulfide tetrafluoride was synthesized and unambiguously characterized by Raman, infrared, and 19F NMR spectroscopy and single-crystal X-ray diffraction. The experimental characterization of WSF4, MoSF4, WSF5 -, and SSi(CH3)3 - was supplemented by density functional theory calculations. en
dc.language.iso en_US en
dc.publisher Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007 en
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en
dc.subject Dissertations, Academic en
dc.subject Electronic dissertations en
dc.subject Tungsten -- Synthesis en
dc.subject Molybdenum -- Synthesis en
dc.subject Tungsten -- Research en
dc.subject Molybdenum -- Research en
dc.title The preparation and characterization of tungsten and molybdenum sulfide fluorides en
dc.type Thesis en
dc.publisher.faculty Arts and Science en
dc.publisher.department Department of Chemistry and Biochemistry en

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