Spectroelectrochemical Investigation of TPPMn(III/II)-Driven Liquid Liquid | Electrode Triple Phase Boundary Anion Transfer into 4-(3-Phenylpropyl)-Pyridine: ClO4-, CO3H-, Cl-, and F

Andrew M Collins, G J Blanchard, Frank Marken

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Abstract

The triple phase boundary transfer of anions from the aqueous into an organic phase can be driven electrochemically here with the tetraphenylporphyrinato-Mn(III/II) (or TPPMn) redox system in 4-(3-phenylpropyl)-pyridine) (or PPP). Anions investigated are perchlorate, chloride, fluoride, and bicarbonate. The bicarbonate and fluoride transfer processes are shown to be chemically more complex compared to the perchlorate and chloride cases with UV-vis-spectroelectrochemical measurements indicating a combination of HCO3-/CO32- transfer processes and association of fluoride with TPPMn(III)+, respectively. In situ spectroelectrochemistry is developed for ion-transfer voltammetry into sub-microliter organic phase regions on mesoporous ITO conducting film electrodes.
LanguageEnglish
Pages246-253
Number of pages8
JournalElectroanalysis
Volume24
Issue number2
DOIs
StatusPublished - Feb 2012

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Phase boundaries
Fluorides
Pyridine
Anions
Negative ions
Spectroelectrochemistry
Bicarbonates
Electrodes
Conductive films
Chlorides
Liquids
Voltammetry
Association reactions
Ions
manganese tetraphenylporphyrin
(4-(3-phenylpropyl)pyridine)
perchlorate
Oxidation-Reduction

Cite this

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title = "Spectroelectrochemical Investigation of TPPMn(III/II)-Driven Liquid Liquid | Electrode Triple Phase Boundary Anion Transfer into 4-(3-Phenylpropyl)-Pyridine: ClO4-, CO3H-, Cl-, and F",
abstract = "The triple phase boundary transfer of anions from the aqueous into an organic phase can be driven electrochemically here with the tetraphenylporphyrinato-Mn(III/II) (or TPPMn) redox system in 4-(3-phenylpropyl)-pyridine) (or PPP). Anions investigated are perchlorate, chloride, fluoride, and bicarbonate. The bicarbonate and fluoride transfer processes are shown to be chemically more complex compared to the perchlorate and chloride cases with UV-vis-spectroelectrochemical measurements indicating a combination of HCO3-/CO32- transfer processes and association of fluoride with TPPMn(III)+, respectively. In situ spectroelectrochemistry is developed for ion-transfer voltammetry into sub-microliter organic phase regions on mesoporous ITO conducting film electrodes.",
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AU - Blanchard,G J

AU - Marken,Frank

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AB - The triple phase boundary transfer of anions from the aqueous into an organic phase can be driven electrochemically here with the tetraphenylporphyrinato-Mn(III/II) (or TPPMn) redox system in 4-(3-phenylpropyl)-pyridine) (or PPP). Anions investigated are perchlorate, chloride, fluoride, and bicarbonate. The bicarbonate and fluoride transfer processes are shown to be chemically more complex compared to the perchlorate and chloride cases with UV-vis-spectroelectrochemical measurements indicating a combination of HCO3-/CO32- transfer processes and association of fluoride with TPPMn(III)+, respectively. In situ spectroelectrochemistry is developed for ion-transfer voltammetry into sub-microliter organic phase regions on mesoporous ITO conducting film electrodes.

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