Conclusions Stabilization energies (4-3 1G) of monosubstituted ethylenes, ethynes, cyclopropanes, and benzenes successfully reproduce the corresponding values based upon experimental AH&). The values can be employed in linear free energy relationships since the entropy changes of isodesmic equations are negligible. Correlations using the Taft dual substituent parameter (DSP) approach as well as Topsom's three parameter ...
