van der Waals (vdW) dispersion interactions play an important role in the structure
... coefficients characterizing the long-range van der Waals interaction between two
which permit the reliable evaluation of second order long range interactions.
cations to rovibrational spectra of Van der Waals molecules, scattering cross sections
(iii) When perturbation theory is applied to the problem in second order, it is
In multiplying out (xAxB+ yAyB−2zAzB)2, the cross terms will have expectation values of zero.
of quadrupole-quadrupole and van der Waals interactions competes with the rotational energy of
Notably among the non-covalent interactions, van der Waals (vdW)
where the dispersion term assumes the London expression and f6 is the damping
Another important source of knowledge about van der Waals forces is formed