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
โฆ LIBER โฆ
Molecular electronic structure calculations employing a plane wave basis: A comparison with Gaussian basis calculations
โ 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
No coin nor oath required. For personal study only.
โฆ 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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