# Browse Abstracts & Presentations - 2021 International Symposium on Molecular Spectroscopy by Subject "Ions"

• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Whereas the electronic ground states of a large number of small molecular cations have been spectroscopically characterized, much less is known concerning electronically excited states, in particular because of the low ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Applying various action spectroscopic techniques in a 4~K cryogenic ion trap instrument, protonated methanimine, CH$_2$NH$_2^+$, has been investigated by high-resolution rovibrational and pure rotational spectroscopy for ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
The McLafferty rearrangement is a well-known process in mass spectrometry. The Mclafferty rearrangement is dissociations of ionized ketones with accompanying hydrogen transfer on the gamma carbon atom to generate an enol ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
This talk will describe single-conformation IR and UV spectroscopy of a series of single-turn and double-turn alpha helices as cryo-cooled, gas phase ions. Synthesized samples of tethered pentapeptides are known to form ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
The study of ion-molecule reactions plays a vital role in cold chemistry, thus implying the need of well-controlled ion ensembles in a cold environment. The internal and external degrees of freedom of molecular ions, trapped ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Nitrous Oxide is the third largest contributor to the greenhouse effect having a potency 300 times that of \chem{CO_2}. Furthermore it is a metastable molecule that can be catalytically converted into harmless nitrogen and ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
When molecules are captured in a helium nanodroplet, the rate of cooling to an equilibrium temperature of ca. 0.4 K is faster than the rate of isomerization, resulting in “shock-freezing” that kinetically traps molecules ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Following-up on our recent infrared photodissociation (IRPD) spectroscopic detection of the linear Ne-tagged HC$_3$O$^+$ molecular ion,\footnote{S. Thorwirth, M. E. Harding, O. Asvany, S. Brünken, P. Jusko, K. L. K Lee, ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
$CH_3^+$ ions were produced upon electron impact ionization of the He droplets doped with methane molecules.The spectra was obtained by recording the intensity of ions detected based upon upon ejection from the droplet ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Vibrational modes of the relatively strongly bound H$_2$He$^+$ molecular ion and its deuterated congener D$_2$He$^+$ are investigated by low-resolution multi-photon photodissociation spectroscopy, using a combination of ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Group 13 (Al, Ga, and In)-piperidine complexes are produced in a pulsed metal-cluster beam source, observed by time-of-flight mass spectrometry, and characterized with pulsed-field-ionization zero electron kinetic energy ...

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