Sublimation of Li@C60

Eleanor E.B. Campbell, Henry J. Chandler, Renald Schaub

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Abstract: Experiments that probe the fundamental properties of endohedral fullerenes often require the preparation of molecular beams or thin films of the neutral molecules. It is challenging to cleanly sublime this class of molecules without producing some thermal degradation. We report combined gas phase and scanning tunnelling microscopy studies that probe the thermal decay of commercial [Li+C60]PF6- in a quartz ampoule and provide treatment conditions that will allow the sublimation of intact, neutral Li@C60 accompanied by a well-characterised component of neutral C60. The decay of the material at appropriate temperatures can be modelled with the assumption of a second order decay process in the oven yielding Arrhenius parameters that can predict the ratio of Li@C60 to C60 in the sublimed material. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
Article number122
JournalEuropean Physical Journal D
Issue number6
StatePublished - 1 Jun 2020

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