Volume 92 Issue 49 | p. 31 | Concentrates
Issue Date: December 8, 2014

A Better Measure Of Van der Waals Forces

Study finds that interaction of organic molecules with a gold surface increases with greater electron delocalization
Department: Science & Technology
News Channels: Analytical SCENE, Materials SCENE
Keywords: van der Waals, surface, AFM

Van der Waals interactions are attractive forces that arise from fluctuations in electron distribution. Such forces are weak and difficult to study experimentally. Nevertheless, they are critical to many areas of chemistry, such as in molecular self-assembly and material adhesion. A team led by Christian Wagner of Germany’s Jülich Research Center has measured for the first time the long-range van der Waals force between molecules and a surface (Nat. Commun. 2014, DOI: . . .

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