Issue 23, 2008

Vanadium oxide compounds with quantum Monte Carlo

Abstract

Calculations with the diffusion quantum Monte Carlo method are presented for vanadium oxide molecules VO0/+n with n = 1–4 and for V2O5. Atomization and ionization energies are calculated as well as oxygen abstraction energies. The fixed-node approximation is compared for guide functions with orbitals from B3LYP and BP86 calculations and higher accuracy was obtained with the latter orbitals. Additionally, all-electron and pseudopotential calculations are compared for the oxygen atom. The overall accuracy is found to be comparable to CCSD(T) calculations where experimental data is available.

Graphical abstract: Vanadium oxide compounds with quantum Monte Carlo

Article information

Article type
Paper
Submitted
28 Feb 2008
Accepted
02 May 2008
First published
16 May 2008

Phys. Chem. Chem. Phys., 2008,10, 3371-3376

Vanadium oxide compounds with quantum Monte Carlo

A. Bande and A. Lüchow, Phys. Chem. Chem. Phys., 2008, 10, 3371 DOI: 10.1039/B803571G

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