Musslimani, Tarek, H.; Youngstown State University. Dept. of Chemistry.
(2004)
A semi-empirical study of the effect of substituent on the HOMO-LUMO
energies of the 3,4 disubstituted 5-membered heterocyclic aromatic compounds, on
the equilibrium constants of the Diels-Alder reaction of N, P, 0 and S ...