Micellar nanocontainers based on sterically hindered cationic phosphonium amphiphiles

Arkhipova, D. M.; Ermolaev, V. V.; Milyukov, V. A.; Валеева, Ф. Г.; Gaynanova, Gulnara A.; Zakharova, L. Ya.

doi:10.1007/s11172-022-3481-7

Cited by 5 publications

(1 citation statement)

References 42 publications

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“…We demonstrated that steric hindrance at phosphorus atom could play a key role in different aspects of phosphonium ionic liquids’ application [ 24 , 25 , 26 ]. Due to unique physical properties such as high conductivity, a very wide electrochemical window, stability, and reproducibility, phosphonium IL with sterically hindered cation was successfully applied in an electrochemical study of insoluble compounds [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Conductive Mediators in Oxidation Based on Ferrocene Functionalized Phosphonium Ionic Liquids

Ermolaev

Kadyrgulova

Khrizanforov

et al. 2022

IJMS

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Herein, the synthesis of ferrocene-containing salts is presented. Acylation of ferrocene (Fc) according to the Friedel–Crafts method led to ω-bromoacyl ferrocenes. The ω-bromoacyl ferrocenes were subsequently introduced to quaternization reaction with tri-tert-butyl phosphine, which resulted in phosphonium salts. Obtained phosphonium salts were characterized by physical methods. The electrochemical properties of phosphonium salts were studied by cyclic voltammetry (CV). It was found that the replacement of n-butyl fragments at the phosphorus atom by tert-butyl leads to a more anodic potential shift. In contrast to isolobal structures Fc-C(O)(CH2)nP+(n-Bu)3X− and Fc-(CH2)n+1P+(n-Bu)3X−, the CV curves of Fc-C(O)(CH2)nP+(t-Bu)3X− and Fc-(CH2)n+1P+(t-Bu)3X− did not show a large discrepancy between forward and reverse currents. The transformation of the C=O groups to CH2 fragments had a significant effect on the electrochemical properties of ferrocene salts, the oxidation potential of which is close to that of pure ferrocene.

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