The hydrogen bond and beyond: Perspectives for rotational investigations of non‐covalent interactions

M Juanes, RT Saragi, W Caminati… - Chemistry–A European …, 2019 - Wiley Online Library
In the last decade, experiment and theory have expanded our vision of non‐covalent
interactions (NCIs), shifting the focus from the conventional hydrogen bond to new bridging …

[HTML][HTML] The LAM of the rings: Large amplitude motions in aromatic molecules studied by microwave spectroscopy

HVL Nguyen, W Caminati, JU Grabow - Molecules, 2022 - mdpi.com
Large amplitude motions (LAMs) form a fundamental phenomenon that demands the
development of specific theoretical and Hamiltonian models. In recent years, along with the …

Ring-polymer instanton tunneling splittings of tropolone and isotopomers using a δ-machine learned ccsd (t) potential: Theory and experiment shake hands

A Nandi, G Laude, SS Khire, ND Gurav… - Journal of the …, 2023 - ACS Publications
Tropolone, a 15-atom cyclic molecule, has received much interest both experimentally and
theoretically due to its H-transfer tunneling dynamics. An accurate theoretical description is …

Formic Acid–Ammonia Heterodimer: A New Δ-Machine Learning CCSD (T)-Level Potential Energy Surface Allows Investigation of the Double Proton Transfer

PL Houston, C Qu, Q Yu, P Pandey… - Journal of Chemical …, 2024 - ACS Publications
The formic acid–ammonia dimer is an important example of a hydrogen-bonded complex in
which a double proton transfer can occur. Its microwave spectrum has recently been …

High-dimensional potential energy surfaces for molecular simulations: from empiricism to machine learning

OT Unke, D Koner, S Patra, S Käser… - … Learning: Science and …, 2020 - iopscience.iop.org
An overview of computational methods to describe high-dimensional potential energy
surfaces suitable for atomistic simulations is given. Particular emphasis is put on accuracy …

Transfer learning for affordable and high-quality tunneling splittings from instanton calculations

S Käser, JO Richardson… - Journal of Chemical Theory …, 2022 - ACS Publications
The combination of transfer learning (TL) a low-level potential energy surface (PES) to a
higher level of electronic structure theory together with ring-polymer instanton (RPI) theory is …

Conformational panorama and chirality controlled structure–energy relationship in a chiral carboxylic acid dimer

F **e, NA Seifert, W Jäger, Y Xu - … Chemie International Edition, 2020 - Wiley Online Library
Chirality recognition in dimers of tetrahydro‐2‐furoic acid (THFA) was studied in a conformer‐
specific manner using rotational spectroscopy and theoretical approaches. THFA shows a …

The Case of Formic Acid on Anatase TiO2(101): Where is the Acid Proton?

G Tabacchi, M Fabbiani, L Mino, G Martra… - Angewandte …, 2019 - Wiley Online Library
Carboxylic‐acid adsorption on anatase TiO2 is a relevant process in many technological
applications. Yet, despite several decades of investigations, the acid‐proton localization …

Excited-state intramolecular proton transfer in 2-(2′-hydroxyphenyl) pyrimidines: synthesis, optical properties, and theoretical studies

R Plaza-Pedroche… - … Applied Materials & …, 2022 - ACS Publications
The development of fluorescence materials with switched on/off emission has attracted great
attention owing to the potential application of these materials in chemical sensing. In this …

Transfer learned potential energy surfaces: accurate anharmonic vibrational dynamics and dissociation energies for the formic acid monomer and dimer

S Käser, M Meuwly - Physical Chemistry Chemical Physics, 2022 - pubs.rsc.org
The vibrational dynamics of the formic acid monomer (FAM) and dimer (FAD) is investigated
from machine-learned potential energy surfaces at the MP2 (PESMP2) and transfer-learned …