intermolecular force

(redirected from Interatomic force)

intermolecular force

[‚in·tər·mə′lek·yə·lər ′fōrs]
(physical chemistry)
The force between two molecules; it is that negative gradient of the potential energy between the interacting molecules, if energy is a function of the distance between the centers of the molecules.
References in periodicals archive ?
Atomic force microscopy is based on bending of cantilever by interatomic forces between atoms at the tip of the scanning cantilever and surface atoms of measured sample.
Objective: The development of ultrafast experimental techniques with femtosecond time resolution is driving the need for deeper theoretical understanding of how intense optical excitation can alter the interatomic forces, drive atomic motion and effect structural changes in materials.
When an orthodontic wire is deformed, several internal tensions occur, which means that its atoms are spatially dislocated and the interatomic forces become unbalanced.
In this model, besides interatomic forces between atoms, the relative sub-lattices motion is taken into account to describe structural deviations in the bi-atomic lattice.
They measured cell dimensions, composition limits, interatomic forces, symmetry and distortion of octahedra and tetrahedra in phyllosilicates.
This force can be in the range of interatomic forces in solids--thus the name "atomic force" microscopy.
These short-range interatomic forces are always present but not usually noticed, since they operate at atomic scales.
Three features characterize the progress made to date: bigger molecular systems described in atomic detail, longer simulation time scales, and more realistic representations of interatomic forces.