R. Hadjadj-Aoul, A. Bouyacoub, A. Krallafa
Jan 30, 2008
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0
Influential Citations
9
Citations
Journal
Journal of Molecular Structure-theochem
Abstract
Abstract Ab initio investigations of the protonation of the aziridine and the para -X-phenylaziridine (X = NO 2 , H and MeO) are carried out at the MP2 level of theory with the 6-31G ∗ basis set. In gas phase the phenylaziridine is found to have a greater proton affinity than the aziridine. When the solvent effects are taken into account, a reverse behavior is observed in agreement with the experimental data. In addition, our calculations show that the electronic effects are transmitted through the phenyl cycle; a π-donor substituent located at the para position of the phenyl increases the proton affinity of the para -X-phenylaziridine. Conversely, a π-acceptor substituent decreases the proton affinity of the para -X-phenylaziridine.