Calculating photoabsorption cross-sections for atmospheric volatile organic compounds

A Prlj, E Marsili, L Hutton, D Hollas… - ACS Earth and Space …, 2021 - ACS Publications
Characterizing the photochemical reactivity of transient volatile organic compounds (VOCs)
in our atmosphere begins with a proper understanding of their abilities to absorb sunlight …

Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets

M Kappe, A Schiller, SA Krasnokutski… - Physical Chemistry …, 2022 - pubs.rsc.org
We report the first helium-tagged electronic spectra of cationic adamantane clusters, along
with its singly, doubly, and triply dehydrogenated analogues embedded in helium droplets …

Can theory quantitatively model stratospheric photolysis? Ab initio estimate of absolute absorption cross sections of ClOOCl

M Ončák, L Šištík, P Slavíček - The Journal of chemical physics, 2010 - pubs.aip.org
We have calculated the absorption spectrum of dichlorine peroxide (ClOOCl) in the spectral
range 250–400 nm. We have employed five different approaches to quantitatively model the …

[HTML][HTML] Photochemistry and spectroscopy of small hydrated magnesium clusters Mg+ (H2O) n, n= 1–5

M Ončák, T Taxer, E Barwa, C van der Linde… - The Journal of …, 2018 - pubs.aip.org
Hydrated singly charged magnesium ions Mg+(H 2 O) n, n≤ 5, in the gas phase are ideal
model systems to study photochemical hydrogen evolution since atomic hydrogen is formed …

Enabling forbidden processes: Quantum and solvation enhancement of nitrate anion UV absorption

O Svoboda, L Kubelova, P Slavicek - The Journal of Physical …, 2013 - ACS Publications
We present simulated electronic absorption spectra of isolated and solvated nitrate anion in
the UV region, focusing primarily on the absorption into the first absorption band around 300 …

Multiconfigurational Character of Repulsive A2Σg+ State Leaves Strong Signature in the Photodissociation Spectrum of Zn2+

D Jank, M Ončák, S Jin, C van der Linde… - Journal of the …, 2024 - ACS Publications
For the excitation to a repulsive state of a diatomic molecule, one expects a single broad
peak in the photodissociation spectrum. For Zn2+, however, two peaks for the spin-and …

Spectroscopy of cluster aerosol models: IR and UV spectra of hydrated glyoxylate with and without sea salt

NK Bersenkowitsch, SJ Madlener, J Heller… - Environmental …, 2023 - pubs.rsc.org
Glyoxylic acid is formed in the troposphere by oxidation of organic molecules. In sea salt
aerosols, it is expected to be present as glyoxylate, integrated into the salt environment and …

Modeling liquid photoemission spectra: Path-integral molecular dynamics combined with tuned range-separated hybrid functionals

D Hollas, E Muchova, P Slavicek - Journal of Chemical Theory …, 2016 - ACS Publications
We present a computational protocol for modeling valence photoemission spectra of liquids.
We use water as an experimentally well-characterized model system, and we represent its …

Simulations of light induced processes in water based on ab initio path integrals molecular dynamics. I. Photoabsorption

O Svoboda, M Ončák, P Slavíček - The Journal of chemical physics, 2011 - pubs.aip.org
We have performed large-scale simulations of UV absorption spectra of water clusters
(monomer to octamer) using a combination of ab initio path-integral molecular dynamics …

Electronic spectroscopy and nanocalorimetry of hydrated magnesium ions [Mg (H 2 O) n]+, n= 20–70: spontaneous formation of a hydrated electron?

T Taxer, M Ončák, E Barwa, C van der Linde… - Faraday …, 2019 - pubs.rsc.org
Hydrated singly charged magnesium ions [Mg (H2O) n]+ are thought to consist of an Mg2+
ion and a hydrated electron for n> 15. This idea is based on mass spectra, which exhibit a …