Multiconfiguration self-consistent field and multireference configuration interaction methods and applications

PG Szalay, T Muller, G Gidofalvi, H Lischka… - Chemical …, 2012 - ACS Publications
The configuration interaction (CI) method is a general procedure to compute approximate
solutions to the electronic Schrödinger equation. The wave function is written as a linear …

Quantum chemical calculations and experimental investigations of molecular actinide oxides

A Kovacs, RJM Konings, JK Gibson, I Infante… - Chemical …, 2015 - ACS Publications
Actinides are the heaviest chemical elements with practical relevance. Among them, only
thorium and uranium can be found in nature in substantial quantities, while natural …

Valence basis sets for relativistic energy-consistent small-core actinide pseudopotentials

X Cao, M Dolg, H Stoll - The journal of chemical physics, 2003 - pubs.aip.org
Gaussian (14s13p10d8f6g)/[6s6p5d4f3g] atomic natural orbital valence basis sets have
been generated for relativistic energy-consistent small-core actinide pseudopotentials of the …

[BOOK][B] Relativistic quantum chemistry: the fundamental theory of molecular science

M Reiher, A Wolf - 2015 - books.google.com
Einstein proposed his theory of special relativity in 1905. For a long time it was believed that
this theory has no significant impact on chemistry. This view changed in the 1970s when it …

Do f Electrons Play a Role in the Lanthanide−Ligand Bonds? A DFT Study of Ln(NR2)3; R = H, SiH3

L Maron, O Eisenstein - The Journal of Physical Chemistry A, 2000 - ACS Publications
The participation of 4f electrons in the bonding of the lanthanide complexes Ln (NR2) 3; R=
H, SiH3, has been investigated at the DFT level. Structural parameters obtained with small …

Theoretical Studies of the Properties and Solution Chemistry of AnO22+ and AnO2+ Aquo Complexes for An = U, Np, and Pu

PJ Hay, RL Martin… - The Journal of Physical …, 2000 - ACS Publications
The structures and vibrational frequencies of UO2 (H2O) 52+, NpO2 (H2O) 52+, and PuO2
(H2O) 52+ corresponding to An (VI) oxidation states and UO2 (H2O) 5+, Np (H2O) 5+, and …

Interfacing relativistic and nonrelativistic methods. IV. One-and two-electron scalar approximations

KG Dyall - The Journal of Chemical Physics, 2001 - pubs.aip.org
Two approximations for the inclusion of scalar relativistic effects into otherwise nonrelativistic
molecular self-consistent field calculations are described, which continue the sequence of …

Electronic structure and spectrum of UO22+ and UO2Cl42−

K Pierloot, E van Besien - The Journal of chemical physics, 2005 - pubs.aip.org
A theoretical study is presented of the electronic spectra of the UO 2 2+ and UO 2 Cl 4 2−
ions, based on multiconfigurational perturbation theory (CASSCF/CASPT2), combined with …

A theoretical study of the inner-sphere disproportionation reaction mechanism of the pentavalent actinyl ions

H Steele, RJ Taylor - Inorganic chemistry, 2007 - ACS Publications
The inner-sphere mechanisms of the disproportionation reactions of U (V), Np (V), and Pu
(V) ions have been studied using a quantum mechanical approach. The U (V) …

Density-functional study of water adsorption on the surface

X Wu, AK Ray - Physical Review B, 2002 - APS
Water adsorption on a PuO 2 (110) surface is studied using a periodic model with both the
local-density approximation (LDA) and the generalized gradient approximation (GGA) of …