Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about The observation of ion-pairing effect based on substituent effect of ferrocene derivatives.HPLC of Formula: 1273-73-0.
The ion-pairing effect was studied based on the substituent effect of ferrocene (Fc) derivatives using cyclic voltammetry. The presence of ion-pairing strongly affected the electrochem. redox behavior in the organic solvent. The formal redox potential (E0′, the average of anodic and cathodic peak potential) shifted neg. with the increasing ion-pairing effect. That was because the formation of ion pair (Fc+·ClO-4) was beneficial to equilibrium shift from Fc to Fc+ in thermodn. Electron-donating and electron-withdrawing substituents of ferrocene derivatives were employed for a deep study of ion-pairing effect, resp. Both ion-pairing effect and electron-donating substituent effect facilitated the neg. shift of E0′ for ferrocene derivatives, showing the pos. cooperativity. While the electron-withdrawing substituent effect resulted in the pos. shift of E0′ for ferrocene derivatives and was unfavorable for the oxidation of Fc derivatives, reflecting the neg. cooperativity with ion-pairing effect. The reversal phenomenon of weak electron-withdrawing substituent was revealed when the ion-pairing effect was stronger than the electron-withdrawing substituent effect, indicating that the ion-pairing function has a significant effect on electrochem. behavior of ferrocene derivatives
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com