Abstract
Multiple-scattering local-density-approximation (MS-LDA) calculations, with both Xα and Vosko–Wilk–Nusair (VWN) exchange-correlation functionals, have been performed on the ring compound 2-imidazolidenone and its sulphur and selenium analogues. Calculated ionization potentials were insensitive to the functional choice and agreed better with experiment than previous studies by other methods. Nitrogen nuclear quadrupole coupling constants were computed; these were sensitive to the functional choice, the VWN coupling constant being consistently lower than the Xα coupling constant. The principle moment, qzz, was in good agreement with experiment: the Xα and VWN results bracketed experiment. However, the asymmetry parameters, η, were not well predicted. Trends along the series paralleled experimental results.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of the Chemical Society, Faraday Transactions
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.