Journalartikel

Many density functional theory approaches fail to give reliable large hydrocarbon isomer energy differences


AutorenlisteSchreiner, PR; Fokin, AA; Pascal, RA; de Meijere, A

Jahr der Veröffentlichung2006

Seiten3635-3638

ZeitschriftOrganic Letters

Bandnummer8

Heftnummer17

ISSN1523-7060

DOI Linkhttps://doi.org/10.1021/ol0610486

VerlagAmerican Chemical Society


Abstract
Several DFT methods were found to be unreliable for computing hydrocarbon isomer energy differences. The errors grow with system size up to 20 kcal mol(-1) for the relative energies of the (CH)(12) isomers; octahedrane is the most stable (CH)(12) hydrocarbon. While DFT geometries generally are good, problems arise for structures with single bonds only, especially for small rings. We recommend the use of higher level, non-DFT energy single points computed at DFT-optimized structures.



Zitierstile

Harvard-ZitierstilSchreiner, P., Fokin, A., Pascal, R. and de Meijere, A. (2006) Many density functional theory approaches fail to give reliable large hydrocarbon isomer energy differences, Organic Letters, 8(17), pp. 3635-3638. https://doi.org/10.1021/ol0610486

APA-ZitierstilSchreiner, P., Fokin, A., Pascal, R., & de Meijere, A. (2006). Many density functional theory approaches fail to give reliable large hydrocarbon isomer energy differences. Organic Letters. 8(17), 3635-3638. https://doi.org/10.1021/ol0610486



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