Partition of amines and lysine oligomers between organic solvent and water under a controlled interfacial potential difference

Katano, Hajime; Maruyama, Mami; Kuroda, Yoshihiro; Uematsu, Kohei; Maruyama, Chitose; Hamano, Yoshimitsu

doi:10.1016/j.jelechem.2018.05.001

Cited by 4 publications

(1 citation statement)

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“…DCE was washed by shaking successively with 1 M NaOH aqueous solution and distilled water, and DFP was washed by shaking with water before use. 13,17 Supporting electrolytes, Oct4NBNSI and Oct4NTPB, were prepared according to our previous papers. 12,18 Other chemicals were of reagent grade and used as received.…”

Section: Chemicalsmentioning

confidence: 99%

Fluorination Effect on the Gibbs Transfer Energy for Methylene Group from 1,2-Dichloroethane or 1,1,1,2,3,4,4,5,5,5- Decafluoropentane to Water

et al. 2021

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The ion transfer reactions of alkyl and perfluoroalkyl carboxylate ions (CH3(CH2)n2COO  and CF3(CF2)n2COO  ) at 1,2-dichloroethane (DCE) | water (W) and 1,1,1,2,3,4,4,5,5,5decafluoropentane (DFP) | W interfaces were investigated. These ions gave reversible or quasireversible voltammetric waves due to their ion transfer across the interfaces, and the formal potentials and the formal Gibbs transfer energies from non-aqueous solvent to water, G 0 tr ' ,→W ( = DCE and DFP), were determined. The G 0 tr ' ,→W for CH3(CH2)n2COO  and CF3(CF2)n2COO  linearly increased with n, allowing for the estimation of G 0 tr ' ,→W for methylene groups. The estimated value of G 0 tr ' ,DCE→W for -CH2-group was higher than that of G 0 tr ' ,DFP→W for -CH2-group, whereas the G 0 tr ' ,DCE→W for -CF2-group was lower than that of G 0 tr ' ,DFP→W for -CF2-group, indicating that the -CH2-(or -CF2-) group is more favorably (or unfavorably) solvated in the DCE phase compared to the DFP phase. From the estimated values, the fluorination effect of alkyl chains on the partition of the alkyl group between the biphase media have also been discussed.

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