28-30 September 2016
Tagungstätte Schloss Ringberg, Kreuth
UTC timezone
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Contribution Contributed Talk

MORNING SESSION - GAS, DUST, ICE AND BEYOND

Building Carbon Bridges on and between Fullerenes in Helium Nanodroplets

Speakers

  • Dr. Sergiy KRASNOKUTSKIY

Primary authors

  • Dr. Sergiy KRASNOKUTSKIY (Laboratory Astrophysics Group of the MPI for Astronomy at the Friedrich Schiller University Jena)

Co-authors

  • Dr. Martin KUHN (Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria)
  • Dr. Alexander KAISER (Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria)
  • Dr. Andreas MAURACHER (Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria)
  • Dr. Michael RENZLER (Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria)
  • Prof. Diethard BOHME (Department of Chemistry, York University, 4700 Keele Street, Toronto M3J 1P3, Ontario, Canada)
  • Prof. Paul SCHEIER (Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria)

Content

We report the observation of sequential collisions of fullerenes with C atoms in an extremely cold environment. Experiments were performed inside helium droplets at 0.37 K doped with $\text C_{60}$ molecules and C atoms. Our results show that C-atom additions can transform a chemically inert fullerene $\text C_{60}$ into chemically reactive carbenes $\text C_{60}(\text C:)_n$.

Carbenes should play an important role in interstellar chemistry. Our experiments demonstrate the reactivity of $\text C_{60}(\text C:)_n$

toward $\text H_2$, $\text H_2O$, and another $\text C_{60}$. We expect similar reactivities toward many other molecules as well as other carbenes such as :CO, :CS, :$\text C_n$:, :$\text C_n{\text O}$, and :CNH. This open the way toward a formation of a new class of fullerene derivatives in the interstellar medium.