Direct computation of second-order SCF properties of large molecules on workstation computers with an application to large carbon clusters
Autor: | H. P. Baron, Hans Horn, Marco Häser, P. Weis, Reinhart Ahlrichs |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Theoretica Chimica Acta. 83:455-470 |
ISSN: | 1432-2234 0040-5744 |
DOI: | 10.1007/bf01113068 |
Popis: | The ab initio SCF computation of second-order properties of large molecules (with 50 atoms or more) on workstation computers is demonstrated for static dipole polarizabilities and nuclear magneting shieldings. The magnetic shieldings are calculated on the basis of gauge including atomic orbitals (GIAO). Algorithmic advances (semi-direct algorithms with efficient integral pre-screening, and use of a quadratically convergent functional for the polarizabilities) are presented together with an illustrative application to the fullerenes C60 and C70. |
Databáze: | OpenAIRE |
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