'One-pot' Hammett plots: A general method for the rapid acquisition of relative rate data
A general 'one-pot' method for determining relative rates of reaction in complex mixtures has been established using free energy relationships to demonstrate its utility. Competition experiments involving as many as seven species gave relative rate consta
Bromide complexes of bismuth with 4-bromobenzyl-substituted cations of pyridinium family
Two bromobismuthate (III) complexes containing 4-bromobenzyl-substituted pyridinium cations – (1-(4-BrBz)Py)3[Bi2Br9] (1) and (1-(4-BrBz)-2-MePy)3[BiBr6] (2) – were prepared by reactions of Bi2/
Adonin, Sergey A.,Fedin, Vladimir P.,Gorokh, Igor D.,Novikov, Alexander S.,Samsonenko, Denis G.,Sokolov, Maxim N.,Usoltsev, Andrey N.,Zakharov, Sergey V.
Non-thermal internal energy distribution of ions observed in an electrospray source interfaced with a sector mass spectrometer
The internal energy distribution P(Eint) of ions emitted in an electrospray (ESI) source interfaced with a sector mass spectrometer is evaluated by using the experimental survival yield (SY) method including the kinetic shift. This method is ba
EFFECTS OF SUBSTITUENTS IN THE BENZYL BROMIDE ON THE KINETICS OF THE BENZYLATION OF AMINES
The kinetics of the reactions of 3- and 4-substituted benzyl bromides with amines having various structures in nitrobenzene at 40 deg C were investigated.The 4-substituted benzyl bromides have higher reactivity compared with that calculated on the basis of the linear correlations according to the Hammett-Taft equation for unsubstituted and 3-substituted benzyl bromides containing electron-withdrawning substituents.The reactivity of benzyl bromides containing electron-donating substituents obeys a linear correlation with the ?+ constants.The effects of structural changes in the substrate and the nucleophile on the character of the transition states of the investigated reactions is discussed.
Shpan'ko, I. V.,Korostylev, A. P.,Rusu, L. N.
p. 1715 - 1723
(2007/10/02)
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