Interaction of Fe(III) tetrakis(4-N-methylpyridinium)porphyrin with sodium dodecyl sulfate at submicellar concentrations

O. Yaffe; E. Korin; A. Bettelheim

doi:10.1021/la802122q

Interaction of Fe(III) tetrakis(4-N-methylpyridinium)porphyrin with sodium dodecyl sulfate at submicellar concentrations

O. Yaffe, E. Korin, A. Bettelheim

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Interaction of water soluble Fe(III) tetrakis(4-N-methylpyridinium) porphyrin (Fe(III)TMPyP) with sodium dodecyl sulfate (SDS) in submicellar concentrations has been studied by surface tension, optical absorption, resonance light scattering (RLS), ζ-potential, and energy dispersive X-ray spectroscopy (EDS) measurements. Measurements were conducted forafixed concentration of Fe(III)TMPyP (6 × 10^-5M)andSDS in various concentrations ranging between 6 × 10^-6 and 6 × 10 ^-2 M. Two macroscopic phase transitions, precipitation and redissolution, were observed as function of SDS concentration. The presence of a new surface active porphyrin-surfactant complex was detected. Furthermore, the presence of two oppositely charged Fe(III)TMPyP-SDS bulk moieties has been demonstrated. Possible structures for the different moieties are suggested, and the phase transitions are discussed.

Original language	English
Pages (from-to)	11514-11517
Number of pages	4
Journal	Langmuir
Volume	24
Issue number	20
DOIs	https://doi.org/10.1021/la802122q
State	Published - 21 Oct 2008

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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title = "Interaction of Fe(III) tetrakis(4-N-methylpyridinium)porphyrin with sodium dodecyl sulfate at submicellar concentrations",

abstract = "Interaction of water soluble Fe(III) tetrakis(4-N-methylpyridinium) porphyrin (Fe(III)TMPyP) with sodium dodecyl sulfate (SDS) in submicellar concentrations has been studied by surface tension, optical absorption, resonance light scattering (RLS), ζ-potential, and energy dispersive X-ray spectroscopy (EDS) measurements. Measurements were conducted forafixed concentration of Fe(III)TMPyP (6 × 10-5M)andSDS in various concentrations ranging between 6 × 10-6 and 6 × 10 -2 M. Two macroscopic phase transitions, precipitation and redissolution, were observed as function of SDS concentration. The presence of a new surface active porphyrin-surfactant complex was detected. Furthermore, the presence of two oppositely charged Fe(III)TMPyP-SDS bulk moieties has been demonstrated. Possible structures for the different moieties are suggested, and the phase transitions are discussed.",

author = "O. Yaffe and E. Korin and A. Bettelheim",

year = "2008",

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day = "21",

doi = "10.1021/la802122q",

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T1 - Interaction of Fe(III) tetrakis(4-N-methylpyridinium)porphyrin with sodium dodecyl sulfate at submicellar concentrations

AU - Yaffe, O.

AU - Korin, E.

AU - Bettelheim, A.

PY - 2008/10/21

Y1 - 2008/10/21

N2 - Interaction of water soluble Fe(III) tetrakis(4-N-methylpyridinium) porphyrin (Fe(III)TMPyP) with sodium dodecyl sulfate (SDS) in submicellar concentrations has been studied by surface tension, optical absorption, resonance light scattering (RLS), ζ-potential, and energy dispersive X-ray spectroscopy (EDS) measurements. Measurements were conducted forafixed concentration of Fe(III)TMPyP (6 × 10-5M)andSDS in various concentrations ranging between 6 × 10-6 and 6 × 10 -2 M. Two macroscopic phase transitions, precipitation and redissolution, were observed as function of SDS concentration. The presence of a new surface active porphyrin-surfactant complex was detected. Furthermore, the presence of two oppositely charged Fe(III)TMPyP-SDS bulk moieties has been demonstrated. Possible structures for the different moieties are suggested, and the phase transitions are discussed.

AB - Interaction of water soluble Fe(III) tetrakis(4-N-methylpyridinium) porphyrin (Fe(III)TMPyP) with sodium dodecyl sulfate (SDS) in submicellar concentrations has been studied by surface tension, optical absorption, resonance light scattering (RLS), ζ-potential, and energy dispersive X-ray spectroscopy (EDS) measurements. Measurements were conducted forafixed concentration of Fe(III)TMPyP (6 × 10-5M)andSDS in various concentrations ranging between 6 × 10-6 and 6 × 10 -2 M. Two macroscopic phase transitions, precipitation and redissolution, were observed as function of SDS concentration. The presence of a new surface active porphyrin-surfactant complex was detected. Furthermore, the presence of two oppositely charged Fe(III)TMPyP-SDS bulk moieties has been demonstrated. Possible structures for the different moieties are suggested, and the phase transitions are discussed.

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U2 - 10.1021/la802122q

DO - 10.1021/la802122q

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SN - 0743-7463

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JO - Langmuir

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ER -

Interaction of Fe(III) tetrakis(4-N-methylpyridinium)porphyrin with sodium dodecyl sulfate at submicellar concentrations

Abstract

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