Efficient Ab Initio Estimation of Formation Enthalpies for Organic Compounds: Extension to Sulfur and Critical Evaluation of Experimental Data

E Paulechka, A Kazakov - The Journal of Physical Chemistry A, 2021 - ACS Publications
The efficient protocol for the estimation of gas-phase enthalpies of formation developed
previously for C, H, O, N, and F elements was extended to sulfur. The protocol is based on a …

Accurate Structures and Spectroscopic Parameters of Guanine Tautomers in the Gas Phase by the Pisa Conventional and Explicitly Correlated Composite Schemes …

V Barone, S Di Grande, F Lazzari… - The Journal of …, 2023 - ACS Publications
A general strategy for the accurate computation of structural and spectroscopic properties of
biomolecule building blocks in the gas phase is proposed and validated for tautomeric …

Development and validation of a parameter-free model chemistry for the computation of reliable reaction rates

V Barone, J Lupi, Z Salta… - Journal of Chemical Theory …, 2021 - ACS Publications
A recently developed model chemistry (jun-Cheap) has been slightly modified and proposed
as an effective, reliable, and parameter-free scheme for the computation of accurate reaction …

Accurate Thermochemical and Kinetic Parameters at Affordable Cost by Means of the Pisa Composite Scheme (PCS)

V Barone, L Crisci, S Di Grande - Journal of Chemical Theory and …, 2023 - ACS Publications
A new strategy for the computation at an affordable cost of geometrical structures,
thermochemical parameters, and rate constants for medium-sized molecules in the gas …

Integral-direct and parallel implementation of the CCSD (T) method: Algorithmic developments and large-scale applications

L Gyevi-Nagy, M Kállay, PR Nagy - Journal of chemical theory …, 2019 - ACS Publications
A completely integral-direct, disk I/O, and network traffic economic coupled-cluster singles,
doubles, and perturbative triples [CCSD (T)] implementation has been developed relying on …

State-of-the-Art Quantum Chemistry Meets Variable Reaction Coordinate Transition State Theory to Solve the Puzzling Case of the H2S + Cl System

J Lupi, C Puzzarini, C Cavallotti… - Journal of Chemical …, 2020 - ACS Publications
The atmospheric reaction of H2S with Cl has been reinvestigated to check if, as previously
suggested, only explicit dynamical computations can lead to an accurate evaluation of the …

The role of state-of-the-art quantum-chemical calculations in astrochemistry: Formation route and spectroscopy of ethanimine as a paradigmatic case

C Baiano, J Lupi, N Tasinato, C Puzzarini, V Barone - Molecules, 2020 - mdpi.com
The gas-phase formation and spectroscopic characteristics of ethanimine have been re-
investigated as a paradigmatic case illustrating the accuracy of state-of-the-art quantum …

Accurate binding energies for lithium polysulfides and assessment of density functionals for lithium–sulfur battery research

Q He, X Liao, L **a, Z Li, H Wang, Y Zhao… - The Journal of …, 2019 - ACS Publications
Lithium–sulfur batteries have high theoretical energy density, but a better knowledge of their
intimate structural details will be helpful in improving their conductivity and long-term cycling …

DMRG on top of plane-wave kohn–sham orbitals: a case study of defected boron nitride

G Barcza, V Ivády, T Szilvási, M Voros… - Journal of Chemical …, 2021 - ACS Publications
In this paper, we analyze the numerical aspects of the inherent multireference density matrix
renormalization group (DMRG) calculations on top of the periodic Kohn–Sham density …

Efficient estimation of formation enthalpies for closed-shell organic compounds with local coupled-cluster methods

E Paulechka, A Kazakov - Journal of chemical theory and …, 2018 - ACS Publications
Efficient estimation of the enthalpies of formation for closed-shell organic compounds via
atom-equivalent-type computational schemes and with the use of different local coupled …