The influence of non-covalent interaction of PHCl2 on the activation energy of Aza-Diels-Alder Reaction
کد مقاله : 1275-PHYSCHEM20
نویسندگان:
فرشته یعقوبی *
چکیده مقاله:
Using DFT calculations, the combination of X2C=NNH2 (X= F, Cl, Br) and 1,3-butadiene to form a
six-membered was investigated. At first, the effect of various substituents of X2C=NNH2 (X= F, Cl, Br) and then the effect of non-covalent interaction of PHCl2 with X2C=NNH2 on the activation barriers of these reactions were studied. It was shown that X=F decreases the activation barriers of these reactions more than other substituents (X= Cl or Br). Also, the energy barriers for these reactions are substantially lowered by non-covalent interaction PHCl2 with X2C=NNH2. The PHCl2 retards the formation of the incipient N-C bond from imine to diene while simultaneously accelerating the C-C bond formation.
کلیدواژه ها:
“Aza-Diels-Alder” “density functional theory (DFT)” “activation energy” “non-covalent interaction”
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