Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes

The electron transfer process between pentammineaquacobalt (III) and hexacyanoferrate (II), [Co(NH<sub>3</sub>)<sub>5</sub>H<sub>2</sub>O]<sup>3+</sup>/Fe(CN)<sub>6</sub>]<sup>4−</sup> ion pair was investigated in water/dioctyl...

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Main Authors: Ram Krishna Hona, Rajesh Thapa, Gurjot S. Dhaliwal
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/9/4552
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author Ram Krishna Hona
Rajesh Thapa
Gurjot S. Dhaliwal
author_facet Ram Krishna Hona
Rajesh Thapa
Gurjot S. Dhaliwal
author_sort Ram Krishna Hona
collection DOAJ
description The electron transfer process between pentammineaquacobalt (III) and hexacyanoferrate (II), [Co(NH<sub>3</sub>)<sub>5</sub>H<sub>2</sub>O]<sup>3+</sup>/Fe(CN)<sub>6</sub>]<sup>4−</sup> ion pair was investigated in water/dioctyl sodium sulfosuccinate (AOT)/Isooctane reverse micelles. The study observed that the electron transfer rate depends on the size of the reverse micelles. The concentrations of Fe (II) ions were varied in different-sized (W<sub>o</sub>) reverse micelles of W<sub>o</sub> = [H<sub>2</sub>O]/[AOT] = 10 to 30, but the concentration of Co (III) ions was kept constant. The rate of electron transfer in the ion pair [Co(NH<sub>3</sub>)<sub>5</sub>H<sub>2</sub>O]<sup>3+</sup>/[Fe(CN)<sub>6</sub>]<sup>4−</sup> increased with decreasing size (W<sub>o</sub>) of reverse micelles. The smallest reverse micelles W<sub>o</sub> = 10 demonstrated the fastest electron transfer rate, and the biggest W<sub>o</sub> = 30 reverse micelles showed the slowest electron transfer rate. The change of reaction environment and the location of the reactants in the reverse micelles due to confinement are considered the factors responsible for the results.
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spelling doaj.art-2ae7cba12a4c4b2e8795c56e39af7b142023-11-23T07:50:38ZengMDPI AGApplied Sciences2076-34172022-04-01129455210.3390/app12094552Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) ComplexesRam Krishna Hona0Rajesh Thapa1Gurjot S. Dhaliwal2Environmental Science Department, United Tribes Technical College, Bismarck, ND 58504, USAFeik School of Pharmacy, University of Incarnate Word, San Antonio, TX 78212, USAIntertribal Research and Resource Center, United Tribes Technical College, Bismarck, ND 58504, USAThe electron transfer process between pentammineaquacobalt (III) and hexacyanoferrate (II), [Co(NH<sub>3</sub>)<sub>5</sub>H<sub>2</sub>O]<sup>3+</sup>/Fe(CN)<sub>6</sub>]<sup>4−</sup> ion pair was investigated in water/dioctyl sodium sulfosuccinate (AOT)/Isooctane reverse micelles. The study observed that the electron transfer rate depends on the size of the reverse micelles. The concentrations of Fe (II) ions were varied in different-sized (W<sub>o</sub>) reverse micelles of W<sub>o</sub> = [H<sub>2</sub>O]/[AOT] = 10 to 30, but the concentration of Co (III) ions was kept constant. The rate of electron transfer in the ion pair [Co(NH<sub>3</sub>)<sub>5</sub>H<sub>2</sub>O]<sup>3+</sup>/[Fe(CN)<sub>6</sub>]<sup>4−</sup> increased with decreasing size (W<sub>o</sub>) of reverse micelles. The smallest reverse micelles W<sub>o</sub> = 10 demonstrated the fastest electron transfer rate, and the biggest W<sub>o</sub> = 30 reverse micelles showed the slowest electron transfer rate. The change of reaction environment and the location of the reactants in the reverse micelles due to confinement are considered the factors responsible for the results.https://www.mdpi.com/2076-3417/12/9/4552reverse micellespseudo-first orderionic strengthdielectric constant
spellingShingle Ram Krishna Hona
Rajesh Thapa
Gurjot S. Dhaliwal
Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes
Applied Sciences
reverse micelles
pseudo-first order
ionic strength
dielectric constant
title Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes
title_full Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes
title_fullStr Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes
title_full_unstemmed Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes
title_short Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes
title_sort effect of reverse micelles size on the electron transfer reaction within the ion pair of co iii fe ii complexes
topic reverse micelles
pseudo-first order
ionic strength
dielectric constant
url https://www.mdpi.com/2076-3417/12/9/4552
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