Experimental and theoretical studies of the gas-phase protonation of vinyl ethers, vinyl sulfides, and vinyl selenides
作者:K. Osapay、J. Delhalle、K. M. Nsunda、E. Rolli、R. Houriet、L. Hevesi
DOI:10.1021/ja00196a002
日期:1989.7
Determination des affinites protoniques par mesure des basicites en phase gazeuse dans un spectrometre a resonance cyclotronique ionique et etude theorique par calculs ab initio MO aux niveaux STO-3G et 3-21G*
Determination des affinites protoniques par mesure des basicites en phasegazeuse dans un spectrometer a Resonance cyclotronique ionique etude theorique par calculs ab initio MO aux niveaux STO-3G et 3-21G*
Xu, Guoying; Herman, Jan A.; Wojcik, Leszek, Canadian Journal of Chemistry, 1990, vol. 68, # 4, p. 570 - 574
作者:Xu, Guoying、Herman, Jan A.、Wojcik, Leszek
DOI:——
日期:——
Temperature and Pressure Effects on the Reversible Reaction of a Parent Phenol (GH) Corresponding to Galvinoxyl with Aliphatic Amines
The effects of temperature and pressure on the reversible reaction between GH and aliphaticamines in acetonitrile have been studied spectrophotometrically. The formation of free ions rather than that of ion pairs has been confirmed by the modified Benesi-Hildebrand (B–H) plot. From the plot the equilibrium constants were estimated. From the temperature dependence of the equilibrium constant (K), the
Studies of the Interesting Gas-phase Rearrangement Reactions of 2-Pyrimidinyloxy-N-arylbenzylurea Promoted by Urea-Carbamimidic Acid Tautomerism by ESI-MS/MS and Theoretical Computation
gas‐phase rearrangementreactions of compound 1, 2‐dimethoxypyrimidinyloxybenzylaminoben‐ zenedipropylurea, were studied by ESI‐MS/MS. The experimental results showed that introduction of dipropylurea moiety into the molecule initiated various interesting gas‐phase chemistries and the mechanisms were proposed on the basis of hydrogen/deuterium (H/D) exchange experiments and theoreticalcomputations. Moreover