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 …

The C (3P)+ NO (X2Π)→ O (3P)+ CN (X2Σ+), N (2D)/N (4S)+ CO (X1Σ+) reaction: Rates, branching ratios, and final states from 15 k to 20 000 k

D Koner, RJ Bemish, M Meuwly - The Journal of chemical physics, 2018 - pubs.aip.org
The C+ NO collision system is of interest in the area of high-temperature combustion and
atmospheric chemistry. In this work, full dimensional potential energy surfaces for the 2 A …

SiS formation in the interstellar medium through Si+ SH gas-phase reactions

VC Mota, AJC Varandas, E Mendoza… - The Astrophysical …, 2021 - iopscience.iop.org
Silicon monosulfide is an important silicon-bearing molecule detected in circumstellar
envelopes and star-forming regions. Its formation and destruction routes are not well …

Dynamics on multiple potential energy surfaces: quantitative studies of elementary processes relevant to hypersonics

D Koner, RJ Bemish, M Meuwly - The Journal of Physical …, 2020 - ACS Publications
The determination of thermal and vibrational relaxation rates of triatomic systems suitable for
application in hypersonic model calculations is discussed. For this, potential energy surfaces …

High-accuracy DMBE potential energy surface for CNO (A′′ 4) and the rate coefficients for the C+ NO reaction in the A′ 2, A′′ 2, and A′′ 4 states

MO Alves, VC Mota, JP Braga, AJC Varandas… - The Journal of …, 2023 - pubs.aip.org
High-accuracy DMBE potential energy surface for CNO(⁠A′′4⁠) and the rate coefficients for
the C + NO reaction in the A′2⁠, A′′2⁠, and A′′4 states | The Journal of Chemical …

Quasiclassical Trajectory Study of the Si+ SH Reaction on an Accurate Double Many-Body Expansion Potential Energy Surface

VC Mota, P Caridade, AJC Varandas… - The Journal of …, 2022 - ACS Publications
An accurate potential energy surface (PES) for the HSiS system based on MRCI+ Q
calculations extrapolated to the complete basis set limit is presented. Modeled with the …

A kernel-based machine learning potential and quantum vibrational state analysis of the cationic Ar hydride (Ar 2 H+)

MJM de Oca-Estévez, Á Valdés… - Physical Chemistry …, 2024 - pubs.rsc.org
One of the most fascinating discoveries in recent years, in the cold and low pressure regions
of the universe, was the detection of ArH+ and HeH+ species. The identification of such …

Theoretical study of the O (3P)+ CN (X2Σ+)→ CO (X1Σ+)+ N (2D)/N (4S) reactions

D Lu, MO Alves, BRL Galvão, H Guo - The Journal of Chemical …, 2024 - pubs.aip.org
Theoretical study of the O(3P) + CN(X2Σ+⁠) → CO(X1Σ+) + N(2D)/N(4S) reactions | The Journal
of Chemical Physics | AIP Publishing Skip to Main Content Umbrella Alt Text Umbrella Alt …

[HTML][HTML] Automated learning data-driven potential models for spectroscopic characterization of astrophysical interest noble gas-containing NgH2+ molecules

MJM de Oca-Estévez, R Prosmiti - Artificial Intelligence Chemistry, 2024 - Elsevier
The choice of a proper machine learning (ML) algorithm for constructing potential energy
surface (PES) models has become a crucial tool in the fields of quantum chemistry and …

Quasiclassical Study of the C(3P) + NO(X2Π) and O(3P) + CN(X2Σ+) Collisional Processes on an Accurate DMBE Potential Energy Surface

MV Alves, CEM Gonçalves, JP Braga… - The Journal of …, 2019 - ACS Publications
The predicted rate constants for C+ NO and O+ CN collisions in three potential energy
surfaces (PESs) for the 2A′ state of the CNO molecule are compared using quasiclassical …