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Exploring the dynamic and thermodynamic properties of halides through molecular dynamics simulations
257th American Chemical Society National Meeting, Orlando, 31-01-2019, 31-03-2019 -
Méthodes multi-références relativistes pour analyser les propriétés des systèmes fortement corrélés: oxydes de plutonium
Réunion plénière – Forum jeunes chercheurs du GdR de Spectroscopie Moléculaire SPECMO, Lille, 22-05-2017, 22-05-2017 -
Combining DMRG with standard relativistic multireference methods to probe the properties of plutonium oxide molecules
REHE-2017, 12th International Conference on Relativistic Effects in Heavy-Element Chemistry and Physics, Marburg, 02-09-2017, 02-09-2017 -
Benchmarking Electronic Structure Calculations on the Bare UO<sub>2</sub><sup>2+</sup> ion: How Different are Single and Multireference Electron Correlation Methods?
Journal of Physical Chemistry A, American Chemical Society, 16-07-2009, 113, 12504---12511Compte-rendu et recension critique d'ouvrage -
Methods based on the coupled cluster ansatz and employing four-component Hamiltonians are particularly appealing in treating the electronic structure of molecules containing heavy centers, due to their ecient treatment of electron correlation and spin-orbit coupling (SOC) [1] on the same footing, up to and including the superheavy elements, as well as to serve as benchmark to more approximate relativistic Hamiltonians, notably those where SOC is treated more approximately (see for instance [2] and references therein).In this contribution we discuss our recent implementation [3] in the Dirac program [4] of the equation of motion coupled cluster method for excitation energies (EOM-EE-CCSD), single electron attachment (EOM-EA-CCSD) and single electron detachment (EOM-IPCCSD). We showcase the method by addressing the determination of the low-lying statesof oxide radicals of group 17 elements (XO, X = Cl, Br, I, At, Ts), the excited and ionized states of the PuO<sub>2</sub> molecule in the gas phase [5], as well as the ionization energies of halide ions in water droplets [6]. In the latter case, we use the frozen density embedding approach to combine EOM-IP-CCSD (for the halogens) and the SAOP model potential (for the water molecules) to determine the ionization energies for the complete halide droplet system, while sampling different nuclear configurations with snapshots obtained from classical molecular dynamics simulations with polarizable force fields [7].This work has been supported by the French national agency for research, contract ANR-11-LABX-0005 chemical and physical properties of the atmosphere (CaPPA).<b>References</b>1. T. Fleig, Chem. Phys., 2 (2012) 395 ; T. Saue, ChemPhysChem, 12 (2011) 30772. E. Epifanovsky et al, J. Phys. Chem., 143 (2015) 064102 ; Z. Cao, Z. Li, F. Wang,W. Liu, Phys. Chem. Chem. Phys., 19 (2017) 3713 ; L. Cheng, F. Wang, J. F. Stanton,J. Gauss, J. Phys. Chem., 148 (2018) 0441083. A. Shee, T. Saue, L. Visscher, A. S. P. Gomes, J. Phys. Chem., 149 (2018) 1741134. http://diracprogram.org5. S. Kervazo, F. Real, F. Virot, A. S. P. Gomes, V. Vallet arXiv:1906.03157 (2019)6. Y. Bouchafra, A. Shee, F. Real, V. Vallet, A. S. P. Gomes Phys. Rev. Lett., 121 (2018)2660017. F. Real et al, J. Chem. Phys., 144, (2016) 124513
ISTCP 2019 - 10th Triennial Congress of the International Society for Theoretical Chemical Physics, Tromsø, 11-07-2019, 11-07-2019 -
Accurate Predictions of Volatile Plutonium Thermodynamic Properties
INORGANIC CHEMISTRY, American Chemical Society, 14-10-2019, 58, 14507-14521Compte-rendu et recension critique d'ouvragetexte intégral -
Unlocking Actinide Chemistry: Navigating Challenges and Insights through the Virtual Laboratory
ICCC 2024 - 45th International Conference on Coordination Chemistry, Fort Collins, CO, 28-07-2024, 28-08-2024 -
Incorporating many-body and environment effects on luminescence and core spectroscopies
GDR NBODY GENERAL MEETING 2022, Toulouse, 10-01-2022, 10-01-2022 -
Exploring luminescence properties of uranyl-based complexes by TRLFS and ab initio method
ATAS-AnXAS Workshop, Grenoble, 17-10-2022, 17-10-2022 -
Uranium(IV) alkyl cations: synthesis, structures, comparison with thorium(IV) analogues, and the influence of arene-coordination on thermal stability and ethylene polymerization activity
Chemical Science, The Royal Society of Chemistry, 10-11-2022, 13, 13748-13763Compte-rendu et recension critique d'ouvragetexte intégral