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Nature of binding in small metal clusters

โœ Scribed by I. G. Kaplan


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
173 KB
Volume
74
Category
Article
ISSN
0020-7608

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โœฆ Synopsis


The ab initio many-body model potentials for the Li and Be clusters 3 3 are constructed. Analysis of its exchange and dispersion contributions allows to elucidate the nature of binding in these clusters. The Li clusters are formed by the covalent 3 chemical bonding, although the interstitial orbitals revealed in the spin-coupled studies of Gerratt and coauthors make the binding picture in the Li clusters far enough from N the convential covalent picture. The binding in the Be clusters has a mixed physical and 3 chemical nature: it is provided by the additive van der Waals forces and the nonadditive three-body exchange forces.


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