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Formation of gas-phase metal fluorides in reactions of fluorinated fullerenes at activated metal surfaces

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  • Alexey V. Streletskiy, Warwick Business School, Warwick University
  • ,
  • Ina D. Kellner, University of Erlangen-Nuremberg, Erlangen, Germany
  • ,
  • Leanne C. Nye, Warwick Business School, Warwick University
  • ,
  • Thomas Drewello, University of Erlangen-Nuremberg, Erlangen, Germany
  • ,
  • Preben Hvelplund
  • Olga V. Boltalina, CIRA, Colorado State University

A comparative investigation into the chemical reactions of a series of fluorinated fullerenes (C60F18, C60F36 and C60F48) with a variety of activated metal surfaces is reported. New ways of generating intense beams of metal fluoride anions are demonstrated: either in reactions of fluorinated fullerene vapours with hot W and Mo metal surfaces in a plasma ion source or by laser desorption/ionisation (LDI) of solid fluorinated fullerenes from various metal substrates (Al, Fe, Cu, Pt, W). In both cases, the resulting metal fluorides and their anions are formed in the highest oxidation state, yielding molybdenum and tungsten hexafluoride anions (plasma ion source), aluminium and iron tetrafluoride anions, and copper trifluoride anions (LDI). No reactions were observed with Pt and W in LDI. The reactivity of the metals towards fluorination correlates with their positions in the metal activity series. Relative yields of bare metal cations are dictated by their ionisation energy. The yield of metal fluoride anions is strongly dependent on the fluorine content of the fluorofullerenes. (C) 2016 Elsevier B.V. All rights reserved.

Original languageEnglish
JournalJournal of Fluorine Chemistry
Volume196
Pages (from-to)98-106
Number of pages9
ISSN0022-1139
DOIs
Publication statusPublished - Apr 2017
EventACS National Meeting - San Diego, Canada
Duration: 1 Mar 2016 → …

Conference

ConferenceACS National Meeting
CountryCanada
CitySan Diego
Period01/03/2016 → …

    Research areas

  • Mass spectrometry, Fluorinated fullerenes, Metal fluorides, Laser desorption, Negative ions, Fluorination, F BOND ACTIVATION, C-F, LANTHANIDE CATIONS, MOLYBDENUM FLUORIDES, SULFUR-HEXAFLUORIDE, ELECTRON-CAPTURE, METHYL-FLUORIDE, NEGATIVE-IONS, REACTIVITY, COLLISIONS

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