Theory of Some van der Waals Molecules

Abstract

Using a potential function of the form V(R)=A(ρ)e−R/ρ−c1R6−c2R8−c3R10−c4R12,the vibrational wave number and energy of dissociation of the molecules HgHe, HgNe, HgA, HgKr, HgXe, Hg2, (O2)2 and (NO)2 in the normal state are calculated. It is found that, if the single value ρ=0.28A is chosen, satisfactory agreement is obtained with experimental data except in the case of (NO)2. The latter structure is believed to owe its binding partly to first-order attractive forces.