The preparation and characterization of tungsten and molybdenum sulfide fluorides

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dc.contributor.authorNieboer, Jared
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorGerken, Michael
dc.date.accessioned2008-09-25T20:45:48Z
dc.date.available2008-09-25T20:45:48Z
dc.date.issued2007
dc.degree.levelMasters
dc.descriptionxv, 131 leaves : ill. ; 29 cm.en
dc.description.abstractSilanethiolate 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.identifier.urihttps://hdl.handle.net/10133/668
dc.language.isoen_USen
dc.publisherLethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007en
dc.publisher.departmentDepartment of Chemistry and Biochemistryen
dc.publisher.facultyArts and Scienceen
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en
dc.subjectDissertations, Academicen
dc.subjectTungsten -- Synthesisen
dc.subjectMolybdenum -- Synthesisen
dc.subjectTungsten -- Researchen
dc.subjectMolybdenum -- Researchen
dc.titleThe preparation and characterization of tungsten and molybdenum sulfide fluoridesen
dc.typeThesisen
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