Helium Droplets Doped with Sulfur and C60.
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ABSTRACT: Clusters of sulfur are grown by passing superfluid helium nanodroplets through a pickup cell filled with sulfur vapor. In some experiments the droplets are codoped with C60. The doped droplets are collided with energetic electrons and the abundance distributions of positively and negatively charged cluster ions are recorded. We report, specifically, distributions of S m (+), S m (-), and C60S m (-) containing up to 41 sulfur atoms. We also observe complexes of sulfur cluster anions with helium; distributions are presented for He n S m (-) with n ≤ 31 and m ≤ 3. The similarity between anionic and cationic C60S m (±) spectra is in striking contrast to the large differences between spectra of S m (+) and S m (-).
SUBMITTER: Harnisch M
PROVIDER: S-EPMC4450369 | biostudies-other | 2015 May
REPOSITORIES: biostudies-other
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