# Browse Abstracts & Presentations - 2020 International Symposium on Molecular Spectroscopy by Title

• (International Symposium on Molecular Spectroscopy, 24-Jun-20)
In simple cases of methyl group internal rotation, the barrier to internal rotation is equal to the $V_{3}$ coefficient in the standard equation of the potential function. In the past few years, methyl internal rotation ...

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• (International Symposium on Molecular Spectroscopy, 23-Jun-20)
2-methyl-2-imidazoline, also known as lysidine, is a non-planar heterocyclic molecule containing two $^{14}$N quadrupolar nuclei and one methyl group. The rotational spectra of this molecule were recorded in the frequency ...

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• (International Symposium on Molecular Spectroscopy, 25-Jun-20)
The development of portable millimeter-wave gas sensors that operate using pulsed Fourier transform detection schemes and meet the stringent demands for space deployment depend on the advancement of several key technologies. ...

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• (International Symposium on Molecular Spectroscopy, 22-Jun-20)
Mandelic acid and its derivatives are useful as chiral synthons in the chemical and pharmaceutical industry because of their versatility. Their wide use in organic reactions make them an important case to study solute-solvent ...

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• (International Symposium on Molecular Spectroscopy, 22-Jun-20)
At the 74th ISMS, our group showed that it is possible to detect microwave radiation in a CP-FTMW experiment that does not copropagate with the incidence of radiation. In that talk, it was shown that this could be achieved ...

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• (International Symposium on Molecular Spectroscopy, 26-Jun-20)
The Great Oxygenation Event, the introduction of O$_{2}$ into the Earth’s atmosphere approximately 2.5 billion years ago, is a critical stage in the development of life on Earth. The exact timing of this event is thought ...

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• (International Symposium on Molecular Spectroscopy, 22-Jun-20)
In 1972, Kaifu et al. and Scoville\footnote{Kaifu, N., Kato, T., \& Iguchi, T. 1972, Nature, 238, 105: Scoville, N. Z. 1972, ApJ, 175, L127} claimed the existence at the Galactic center (GC) of a circular Expanding Molecular ...

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• (International Symposium on Molecular Spectroscopy, 22-Jun-20)
A three dimensional discrete variable representation (DVR) is developed for the general case of a rare gas atom interacting with an asymmetric top molecule and applied to the case of argon-haloethylene heterodimers. The ...

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• (International Symposium on Molecular Spectroscopy, 25-Jun-20)
The ongoing development of rotational spectroscopy through the growth of broadband capabilities and automated acquisition schemes regularly generates a wealth of data to be analyzed. However, assigning these data is often ...

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• (International Symposium on Molecular Spectroscopy, 25-Jun-20)
The CaX family of diatomic molecules illustrates concepts developed by inorganic chemists to rationalize the properties of metal-centered complexes. The basic idea is that an atom or an atomic-ion is surrounded by ligands, ...

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• (International Symposium on Molecular Spectroscopy, 24-Jun-20)
In preparation for our FTMW study of the complex between hydrogen and silver bromide, H$_{2}$ AgBr, we have investigated the microwave spectra of our source of bromine, dibromodifluoromethane, CBr$_2$F$_{2}$. Previous ...

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• (International Symposium on Molecular Spectroscopy, 23-Jun-20)
Innovations in ion traps have made it possible to control ion chemistry in real time. Currently, our lab studies microsolvated species and reaction intermediates using a home-built dual cryogenic ion mass spectrometer. ...

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• (International Symposium on Molecular Spectroscopy, 24-Jun-20)
Rotational spectroscopy has proved itself to be an invaluable tool for detecting small radicals and organic molecules in the interstellar medium. Unpaired electrons complicate rotational spectra from spin-rotation coupling ...

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• (International Symposium on Molecular Spectroscopy, 26-Jun-20)
\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.28]{Ethylene_nu_7_band_995K_2.3atm.eps} \end{wrapfigure} To address the notable lack of knowledge on high-temperature absorption cross sections of important molecular ...

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• (International Symposium on Molecular Spectroscopy, 24-Jun-20)
The solid AlaAla dipeptide (m.p. 285ºC) has been placed in the gas phase by laser ablation and studied using a chirped-pulse Fourier-transform microwave (LA-CP-FTMW) and molecular-beam Fourier-transform micro-wave (LA-MB-FTMW) ...

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• (International Symposium on Molecular Spectroscopy, 24-Jun-20)
The circumstellar envelopes of asymptotic giant branch (AGB) and red supergiant (RSG) stars are known for their unique chemistry and efficient production of dust grains. Though dust grain composition and behavior at ...

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• (International Symposium on Molecular Spectroscopy, 22-Jun-20)
The CDMS\footnote{Shortcut: cdms.de; web address: https://cdms.astro.uni-koeln.de/. The CDMS is supported by the Verbundforschung Physik of the BMBF (German Ministry of Science and Education), project ID 05A17PK1.} was ...

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• (International Symposium on Molecular Spectroscopy, 22-Jun-20)
A new experimental approach to studying interstellar and cometary ice analogs has been designed that uses millimeter/submillimeter (mm/submm) spectroscopy coupled with mass spectrometry to identify desorbed gas-phase ...

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• (International Symposium on Molecular Spectroscopy, 25-Jun-20)
This work was motivated by difficulties encountered while trying to calibrate laser excitation spectra, taken in short (1 {cm$^{-1}$}) scans around 438 nm, by matching optogalvanic transitions from a Uranium-Argon hollow ...

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• (International Symposium on Molecular Spectroscopy, 24-Jun-20)
Continuous-wave optical parametric oscillators (CW-OPOs) can offer broad tuning with high resolution and high power in the mid-IR and have many important potential applications in precision spectroscopy. The widely tunable ...

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