Title: Results
1Results In our first experiment, we attempted
to replicate the results of Taylor et. al. 1.
Mass spectrometric analysis of sample 1 revealed
a peak at m / z 720 (spectrum A). This mass /
charge ratio and isotopic distribution is
consistent with that previously reported for
60fullerene 10. Additionally, peaks with
mass / charge ratios indicative of various
hydrogenated fullerenes, C40Hx, C50Hx, C60Hx,
C70Hx, appear in the mass spectrum of this sample
(spectrum B). The appearance of these compounds
supports the mechanism described by Taylor et.
al. for the successive combination of C10
fragments, followed by dehydrogenation, to form
60fullerene 1. Unfortunately, at the time
this experiment was performed, we had no means to
measure the temperature in the pyrolysis zone,
nor the flowrate of helium through the apparatus.
Mass spectrum C (sample 2) contains peaks with m
/ z ratios that may also represent hydrogenated
fullerenes. A high-resolution spectrum (D) is
presented. Exact masses and corresponding
compounds are listed in Table 3. The conditions
under which this sample was obtained are
presented in Table 1. Sample 3, presented in
mass spectrum E, also appears to contain
hydrogenated fullerenes. Table 2 describes the
reflux conditions for dehydrogenation. Mass
spectrum F was obtained from an aliquot taken at
the end of this reflux. The decrease from m / z
748 to m / z 738 suggests that some hydrogen
removal did occur. It is not clear whether or
not the peak at m / z 228 (not shown) is an
indication of the hydroquinone, or merely part of
the isotopic distribution of the DDQ.