Connections between the accuracy of rotational constants and equilibrium molecular structures

C Puzzarini, JF Stanton - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
Rotational spectroscopy is the technique of choice for investigating molecular structures in
the gas phase. Indeed, rotational constants are strongly connected to the geometry of the …

Setting up the HyDRA blind challenge for the microhydration of organic molecules

TL Fischer, M Bödecker… - Physical Chemistry …, 2022 - pubs.rsc.org
The procedure leading to the first HyDRA blind challenge for the prediction of water donor
stretching vibrations in monohydrates of organic molecules is described. A training set of 10 …

The first HyDRA challenge for computational vibrational spectroscopy

TL Fischer, M Bödecker, SM Schweer… - Physical Chemistry …, 2023 - pubs.rsc.org
Vibrational spectroscopy in supersonic jet expansions is a powerful tool to assess molecular
aggregates in close to ideal conditions for the benchmarking of quantum chemical …

Towards understanding solvation effects on the conformational entropy of non-rigid molecules

J Gorges, S Grimme, A Hansen, P Pracht - … Chemistry Chemical Physics, 2022 - pubs.rsc.org
The absolute molecular entropy is a fundamental quantity for the accurate description of
thermodynamic properties. For non-rigid molecules, a substantial part of the entropy can be …

Unlocking the Water Trimer Loop: Isotopic Study of Benzophenone‐(H2O)1–3 Clusters with Rotational Spectroscopy

W Li, MM Quesada‐Moreno, P Pinacho… - Angewandte …, 2021 - Wiley Online Library
Examined here are the structures of complexes of benzophenone microsolvated with up to
three water molecules by using broadband rotational spectroscopy and the cold conditions …

Dispersion Control over Molecule Cohesion: Exploiting and Dissecting the Tipping Power of Aromatic Rings

RA Mata, T Zhanabekova, DA Obenchain… - Accounts of Chemical …, 2024 - ACS Publications
Conspectus We have learned over the past years how London dispersion forces can be
effectively used to influence or even qualitatively tip the structure of aggregates and the …

[HTML][HTML] Computational optimal transport for molecular spectra: The fully discrete case

NA Seifert, K Prozument, MJ Davis - The Journal of Chemical Physics, 2021 - pubs.aip.org
The use of computational optimal transport is investigated as a tool for comparing two
molecular spectra. Unlike other techniques for comparing molecular spectra in a pattern …

Noncovalent interactions between aromatic heterocycles and carboxylic acids: Rotational spectroscopy of the furan–formic acid and thiophene–formic acid complexes

T Yang, L Wang, Z Wang, Y Xu… - The Journal of Physical …, 2022 - ACS Publications
The binary molecular complexes formed between the aromatic heterocycles furan and
thiophene with formic acid were investigated using pulsed-jet Fourier transform microwave …

Benchmarking quantum chemical methods for accurate gas-phase structure predictions of carbonyl compounds: the case of ethyl butyrate

LW Sutikdja, HVL Nguyen, D Jelisavac… - Physical Chemistry …, 2023 - pubs.rsc.org
High-resolution spectroscopy techniques play a pivotal role to validate and efficiently
benchmark available methods from quantum chemistry. In this work, we analyzed the …

A rather universal vibrational resonance in 1: 1 hydrates of carbonyl compounds

TL Fischer, T Wagner, HC Gottschalk… - The Journal of …, 2020 - ACS Publications
When the lower frequency OH stretching fundamental of a water molecule is shifted to the
3500 cm–1 spectral range by the solvation of a carbonyl compound, in this case a ketone, its …