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Molecular electronic structure calculations employing a plane wave basis: A comparison with Gaussian basis calculations

โœ Scribed by Simon B. Andrews; Neil A. Burton; Ian H. Hillier; Janusz M. Holender; Michael J. Gillan


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
393 KB
Volume
261
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


A study is presented comparing molecular structures using plane wave pseudopotential and conventional Gaussian basis density functional methods. The relative accuracy of the two methods is discussed for a range of small molecules. The results show that the plane wave method can reproduce the accuracy of large Gaussian basis calculations for non-periodic systems with a competitive compute time.


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Relativistic Gaussian basis set calculat
โœ Yasuyuki Ishikawa; Reinaldo Baretty; R.C. Binning Jr. ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 264 KB

The disadvantages of using Gaussian funcrions (GTOs) in SCF eleerronic su-ucIurc calculations are well known. The difricultics associated with Gaussians arc likely IO be more scvcrc-in relalivistic Dirac-Foek calculations. Relnlivistic eKee~ are impormm Tar core elcewms. whereas GTOs give a poor des