A mass spectrometric study of C60F48

Novel method of synthesis of C60F48 with improved yield and selectivity

“…The relative intensity of the oxidized C 60 F 48 O + ion always observed together with the molecular ion in such type of analysis was less than 4%. The rest of the signals corresponded to fragment ions formed via abstraction of CF 2 , CF 3 , CF 4 , C 2 F 5 and C 3 F 7 groups from the C 60 F 48 molecule, which agrees well with the data published in [18]. The authors of the latter work have estimated the intensity ratio of C 60 F 46 + and C 60 F 44 + fragment ions to the molecular ion as 5% or less.…”

The standard molar enthalpy of formation of fluorofullereneC60F48

“…(5) The molecular composition of the sample was characterized by mass spectrometry. Two methods were applied: Knudsen cell mass spectrometry (KCMS) (9) and electrospray mass spectrometry (ESMS). (10) Both methods showed very similar results on the composition of the sample (table 1).…”

In-Plume Thermodynamics of the MALDI Generation of Fluorofullerene Anions

“…However, the product analysis following halogenation, alkylation, or fluoroalkylation is challenging as these radical reactions normally yield a wide range of complex mixtures of polysubstituted compounds. The MS analysis of fluorinated fullerene (FF) derivatives − is often hampered by significant degradation/dissociation of FFs, thereby preventing adequate characterization of their molecular compositions. This is particularly true for methods based on desorption/ionization such as MALDI-MS.…”