van der Waals force

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van der Waals force

n.
A weak, short-range attractive force between atoms or molecules caused by their dipole moments, often arising in otherwise nonpolar atoms or molecules from a temporary shift of orbital electrons to one side of one atom or molecule.

[After Johannes Diderik van der Waals.]

van der Waals force

(văn′ dər wôlz′)
A weak force of attraction between electrically neutral molecules that collide with or pass very close to each other. The van der Waals force is caused by temporary attractions between electron-rich regions of one molecule and electron-poor regions of another. These attractions are very common but are much weaker than chemical bonds. The van der Waals force is what allows water vapor to condense into liquid water.
Translations
van der Waalsin voima
van der Waalskracht
van der Waalskraft
References in periodicals archive ?
Ab initio calculations indicated a XeAu bond energy of about 100 kJ/mol, i.e., well into the regime for covalent bonds and much larger than expected for van der Waals bonding. It is then interesting to ask how much of the bond strength actually arises from the attraction of the Au-F dipole to the polarizable xenon atom.
47), but scientists weren't sure whether van der Waals bonding or water adsorption was at work.
Indeed, the total amount of van der Waals bonding, directly related to the distribution function, as expected from the filler-filler network/model govern the physical properties of the filled rubber compounds.