Single‐reference coupled cluster methods for computing excitation energies in large molecules: the efficiency and accuracy of approximations

R Izsák - Wiley Interdisciplinary Reviews: Computational …, 2020 - Wiley Online Library
While methodological developments in the last decade made it possible to compute coupled
cluster (CC) energies including excitations up to a perturbative triples correction for …

A mountaineering strategy to excited states: Highly accurate reference energies and benchmarks

PF Loos, A Scemama, A Blondel… - Journal of chemical …, 2018 - ACS Publications
Striving to define very accurate vertical transition energies, we perform both high-level
coupled cluster (CC) calculations (up to CCSDTQP) and selected configuration interaction …

A mountaineering strategy to excited states: Highly accurate energies and benchmarks for medium sized molecules

PF Loos, F Lipparini, M Boggio-Pasqua… - Journal of Chemical …, 2020 - ACS Publications
Following our previous work focusing on compounds containing up to 3 non-hydrogen
atoms [J. Chem. Theory Comput. 2018, 14, 4360–4379], we present here highly accurate …

Assessing the performances of CASPT2 and NEVPT2 for vertical excitation energies

R Sarkar, PF Loos, M Boggio-Pasqua… - Journal of Chemical …, 2022 - ACS Publications
Methods able to simultaneously account for both static and dynamic electron correlations
have often been employed, not only to model photochemical events but also to provide …

Charge-transfer excitations within density functional theory: How accurate are the most recommended approaches?

D Mester, M Kállay - Journal of Chemical Theory and …, 2022 - ACS Publications
The performance of the most recent density functionals is assessed for charge-transfer (CT)
excitations using comprehensive intra-and intermolecular CT benchmark sets with high …

Assessing the accuracy of local hybrid density functional approximations for molecular response properties

C Holzer, YJ Franzke, M Kehry - Journal of Chemical Theory and …, 2021 - ACS Publications
A comprehensive overview of the performance of local hybrid functionals for molecular
properties like excited states, ionization potentials within the GW framework, polarizabilities …

Mountaineering strategy to excited states: Highly accurate energies and benchmarks for exotic molecules and radicals

PF Loos, A Scemama, M Boggio-Pasqua… - Journal of chemical …, 2020 - ACS Publications
Aiming at completing the sets of FCI-quality transition energies that we recently developed
(J. Chem. Theory Comput. 2018, 14, 4360–4379, ibid. 2019, 15, 1939–1956, and ibid. 2020 …

Exploring the accuracy of a low scaling similarity transformed equation of motion method for vertical excitation energies

AK Dutta, M Nooijen, F Neese… - Journal of chemical theory …, 2018 - ACS Publications
The newly developed back transformed pair natural orbital based similarity transformed
equation of motion (bt-STEOM) method at the coupled cluster singles and doubles level …

A new benchmark set for excitation energy of charge transfer states: systematic investigation of coupled cluster type methods

B Kozma, A Tajti, B Demoulin, R Izsák… - Journal of chemical …, 2020 - ACS Publications
The numerous existing publications on benchmarking quantum chemistry methods for
excited states rarely include Charge Transfer (CT) states, although many interesting …

A mountaineering strategy to excited states: Highly accurate energies and benchmarks for bicyclic systems

PF Loos, D Jacquemin - The Journal of Physical Chemistry A, 2021 - ACS Publications
Pursuing our efforts to define highly accurate estimates of the relative energies of excited
states in organic molecules, we investigate, with coupled-cluster methods including iterative …