TRENDS IN ATOM MOLECULE-SURFACE VAN-DER-WAALS INTERACTIONS/

A recently proposed van der Waals density functional is used to predic t the van der Waals coefficient and the van der Waals reference-plane position for a large number of atoms and molecules interacting with me tal surfaces represented by a face-dependent stabilized-jellium model. The extensive tabulation makes it possible to assess the strength of the ran der Was] forces for many more systems than have been considere d previously in the literature. A prescription which is also valid for other systems is provided. The results show a characteristic dependen ce on atomic molecular and bulk surface parameters. For the van der Wa als reference plane,the results are dominated by the pronounced depend ence on the exposed crystal face of the metal. (C) 1997 Elsevier Scien ce B.V.