Singlet and triplet excited state electric dipole polarizabilities of conjugated hydrocarbons 

Comparison of several expansions in the calculation of static electric dipole π polarizability of conjugated molecules by pertubation theory. The ground and the first excited singlet states 

Quadrupole moments, dipole quadrupole A and quadrupole C polarizabilities by means of perturbation theory 

The relative rates of the reactions of hydrogen atoms with hydrogen iodide and hydrogen bromide