# Browse Abstracts & Presentations - 2021 International Symposium on Molecular Spectroscopy by Title

• (International Symposium on Molecular Spectroscopy, 2021-06-23)
We describe a new interactive program (DAPPERS: \underline{D}ata \underline{A}nalysis \underline{P}ackage for \underline{P}roductive and \underline{E}nthusiastic \underline{R}otational \underline{S}pectroscopists) for the ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-25)
Graph representations of spectroscopic information have been increasing in popularity due to their efficiency and scalability in encoding large volumes of data; simply, energy levels are represented as nodes, and transitions ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-25)
The nucleic acid bases that we know today are thought to have originated from simple precursors also referred to as proto-biotic RNA. These molecular ancestors of RNA and DNA may have formed from a vast number of organic ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
The density dependence of pressurized and supercritical carbon dioxide (CO$_{2}$) electronic absorption spectra was explored by vacuum ultraviolet (VUV) spectroscopy over the wavelength range 1455-2000 \AA. The peak energy ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.2]{Fig_nu4.eps} \end{wrapfigure} Silicon tetrafluoride (SiF$_4$) should be a normal trace component of volcanic gases. However, a better knowledge of spectroscopic ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Gold is a versatile material with unique properties that underpin its importance in medicine, catalysis, electronics and basic research. The theoretical description of even very small Au clusters remains challenging due ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-25)
A new electronic transition of PtF has been recorded at high resolution using Intracavity Laser Spectroscopy (ILS). The PtF molecules were produced in a current regulated RF discharge operating with 0.20-0.80 A applied to ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Large difference of chemical compositions between molecular clouds and comets is a big question for astrochemistry. The case of a pre-biotic molecule \chem{CH_3NCO} is one of them. The abundance ratio of [\chem{CH_3NCO}] ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
\begin{wrapfigure}{l}{0pt} \includegraphics[scale=0.2]{Repulsive_or_atractive.eps} \end{wrapfigure} London dispersion, the attractive part of the van der Waals potential, is an omnipresent force in molecules. However, ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-25)
This is a continued discussion regarding the substitution effectcts on the three-dimensional shape and electron distribution of three methylamine substituted pyridines, 2-, 3-, and 4-picolylamine. The microwave spectra of ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
\noindent Helium, as one of the simplest few-electron atoms, is well suited to test fundamental interactions and QED calculations with a high precision. Its importance is underlined by recent advances in the determination ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Since their inception, charged-particle imaging techniques have transformed how chemical reactions and dynamics are studied. Ion imaging is a powerful detection method for many as it allows for higher resolution measurements ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
We report progress on the construction and development of a cryogenic buffer gas beam (CBGB) instrument for studying the IR spectroscopy of atomic and molecular clusters. Clusters are produced via laser ablation of a solid ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
A cavity ringdown spectrometer with a supersonic wind tunnel for measurements of excited species and radicals at low pressures and temperatures has been developed. The spectrometer has been used for measurements of metastable ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-23)
Diffusion Monte Carlo (DMC) is a technique for obtaining the ground-state solution to the vibrational time-independent Schrödinger equation based on a stochastic sampling of an electronic potential energy surface (PES). ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-22)
Optical frequency combs provide broadband coverage while still being able to take full advantage of cavity-enhanced methods. The mid-infrared is highly desirable for molecular spectroscopy, where many strong fundamental ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-24)
Since gas-phase hydrogen-bonded clusters are treated as microscopic models of hydrogen bond networks, numerous spectroscopic studies have been performed, so far. Structural fluctuations are one of features of hydrogen bond ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-25)
Nitrogen-containing heterocycles pose an intriguing astrochemical mystery. 45 different varieties have been detected on meteorites with non-terrestrial isotopic abundances, but none have been detected in space, despite ...

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• (International Symposium on Molecular Spectroscopy, 2021-06-25)
The visible electronic transitions of the simple asymmetric top molecules CaSH and CaNH2 have been extensively studied both field-free $\footnote{Z. Morbi, C. Zhao, J.W. Hepburn, and P.F. Bernath, J. Chem. Phys. 108, 8891 ... application/pdf PDF (35kB) • (International Symposium on Molecular Spectroscopy, 2021-06-25) The fundamentals of XH stretching modes typically lie in the 2,500 – 3,700 cm$^{-1}$(2.7 - 4.0$\mu\$m) range. Continuous-wave optical parametric oscillators (CW OPOs) enable high-resolution spectroscopy in this region. A ...

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