Abstract

Molecular polarizabilities and diamagnetic susceptibilities are important for several kinetic aspects of positive
ion chemistry. The reactivity nature of a molecule depends in the most general way on the polarization and
polarizability of the different atoms of which it is composed. The use of polarizabilities in calculating the effect
of perturbation is equivalent to using first order perturbation theory. The ring current associated with the
aromatic molecules is responsible for the diamagnetic susceptibility exaltations. In view of these applications
molecular polarizabilities and diamagnetic susceptibilities are evaluated for thymidine and its substituents and
presented in this paper.