Zobrazeno 1 - 10
of 213
pro vyhledávání: '"Echt, Olof"'
Autor:
Mahmoodi-Darian, Masoomeh, Maalouf, Elias Jabbour Al, Zöttl, Samuel, Scheier, Paul, Echt, Olof
Publikováno v:
Int. J. Mass Spectrom. 450 (2020) 116293
High-resolution mass spectra of helium droplets doped with C$_{60}$ and formic acid (FA) are ionized by electrons. Positive ion mass spectra reveal cluster ions [(C$_{60}$)$_p$FA$_n$]$^+$ together with their hydrogenated and dehydrogenated counterpar
Externí odkaz:
http://arxiv.org/abs/2211.10133
Autor:
Tiefenthaler, Lukas, Kollotzek, Siegfried, Gatchell, Michael, Hansen, Klavs, Scheier, Paul, Echt, Olof
Publikováno v:
J. Chem. Phys. 153 (2020) 164305
Neon cluster ions Ne$_s^+$ grown in pre-ionized, mass-to-charge selected helium nanodroplets (HNDs) reveal a strong enrichment of the heavy isotope $^{22}$Ne that depends on cluster size s and the experimental conditions. For small sizes the enrichme
Externí odkaz:
http://arxiv.org/abs/2211.09367
Autor:
Mahmoodi-Darian, Masoomeh, Martini, Paul, Tiefenthaler, Lukas, Kočišek, Jaroslav, Scheier, Paul, Echt, Olof
Publikováno v:
J. Phys. Chem. A 123 (2019) 10426-10436
We use a novel technique to solvate silver cations in small clusters of noble gases. The technique involves formation of large, superfluid helium nanodroplets that are subsequently electron ionized, mass-selected by deflection in an electric field, a
Externí odkaz:
http://arxiv.org/abs/2211.05387
Autor:
Martini, Paul, Kranabetter, Lorenz, Goulart, Marcelo, Rasul, Bilal, Gatchell, Michael, Scheier, Paul, Echt, Olof
Publikováno v:
J. Phys. Chem. A 123, 9505-9513 (2019)
High-resolution mass spectra of helium droplets doped with gold and ionized by electrons reveal He$_n$Au$^+$ cluster ions. Additional doping with heavy noble gases results in NenAu+, Ar$_n$Au$^+$, Kr$_n$Au$^+$, and Xe$_n$Au$^+$ cluster ions. The high
Externí odkaz:
http://arxiv.org/abs/2211.05383
Publikováno v:
Phys.Chem.Chem.Phys. 22 (2020) 28165-28172
We demonstrate a novel method to ionize molecules or molecular clusters by proton transfer at temperatures below 1 K. The method yields nascent ions and largely eliminates secondary reactions, even for notoriously "delicate" molecules. Protonation is
Externí odkaz:
http://arxiv.org/abs/2211.05374
Publikováno v:
J. Phys. Chem. C 121 (2017) 10632-10637
Anions are formed by electron attachment to helium nanodroplets doped with N$_2$. The most prominent ion series is due to odd-numbered N$_m$$^{-}$ with 3 $\le$ m < 140. Neither N$^{-}$ nor N$_2$$^{-}$ are observed. An appearance energy of 11.5 $\pm$
Externí odkaz:
http://arxiv.org/abs/1805.00835
Autor:
Kranabetter, Lorenz, Goulart, Marcelo, Aleem, Abid, Kurzthaler, Thomas, Kuhn, Martin, Barwa, Erik, Renzler, Michael, Grubwieser, Lukas, Schwärzler, Matthias, Kaiser, Alexander, Scheier, Paul, Echt, Olof
Publikováno v:
J. Phys. Chem. C 121 (2017) 10887-10892
Helium nanodroplets are doped with cesium and molecular hydrogen and subsequently ionized by electrons. Mass spectra reveal H$_x$Cs$^{+}$ ions that contain as many as 130 hydrogen atoms. Two features in the spectra are striking: First, the abundance
Externí odkaz:
http://arxiv.org/abs/1805.00809
Autor:
Kaiser, Alexander, Renzler, Michael, Kranabetter, Lorenz, Schwärzler, Matthias, Parajuli, Rajendra, Echt, Olof, Scheier, Paul
Hydrogen storage by physisorption in carbon based materials is hindered by low adsorption energies. In the last decade doping of carbon materials with alkali, earth alkali or other metal atoms was proposed as a means to enhance adsorption energies, a
Externí odkaz:
http://arxiv.org/abs/1701.05336
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