Photoredox reactions in water-in-oil microemulsions. The functions of amphiphilic viologens in charge separation and electron transfer across a water-oil boundary

Daniel Mandler; Yinon Degani; Itamar Willner

doi:10.1021/j150663a036

Photoredox reactions in water-in-oil microemulsions. The functions of amphiphilic viologens in charge separation and electron transfer across a water-oil boundary

Daniel Mandler
, Yinon Degani
, Itamar Willner^*

^*Corresponding author for this work

Institute of Chemistry

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

23 Scopus citations

Abstract

The photosensitized reduction of the series of dialkyl-4,4′-bipyridinium salts, C_nV²⁺, is examined in water-in-oil microemulsions, by using Ru(bpy)₃²⁺ as sensitizer and (NH₄)₃EDTA as electron donor. With the amphiphilic electron acceptors (n = 8-18) the water-in-oil microemulsion media affect the charge separation of the initial encounter cage complex, [Ru(bpy)₂³⁺⋯C_nV⁺·], and stabilize the photoproducts, C_nV⁺· and Ru(bpy)₃³⁺, against the recombination process. Consequently, enhanced quantum yields for C_nV⁺· formation are observed under continuous illumination.

Original language	English
Pages (from-to)	4366-4370
Number of pages	5
Journal	Journal of Physical Chemistry
Volume	88
Issue number	19
DOIs	https://doi.org/10.1021/j150663a036
State	Published - 1984

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title = "Photoredox reactions in water-in-oil microemulsions. The functions of amphiphilic viologens in charge separation and electron transfer across a water-oil boundary",

abstract = "The photosensitized reduction of the series of dialkyl-4,4′-bipyridinium salts, CnV2+, is examined in water-in-oil microemulsions, by using Ru(bpy)32+ as sensitizer and (NH4)3EDTA as electron donor. With the amphiphilic electron acceptors (n = 8-18) the water-in-oil microemulsion media affect the charge separation of the initial encounter cage complex, [Ru(bpy)23+⋯CnV+·], and stabilize the photoproducts, CnV+· and Ru(bpy)33+, against the recombination process. Consequently, enhanced quantum yields for CnV+· formation are observed under continuous illumination.",

author = "Daniel Mandler and Yinon Degani and Itamar Willner",

year = "1984",

doi = "10.1021/j150663a036",

language = "אנגלית",

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T1 - Photoredox reactions in water-in-oil microemulsions. The functions of amphiphilic viologens in charge separation and electron transfer across a water-oil boundary

AU - Mandler, Daniel

AU - Degani, Yinon

AU - Willner, Itamar

PY - 1984

Y1 - 1984

N2 - The photosensitized reduction of the series of dialkyl-4,4′-bipyridinium salts, CnV2+, is examined in water-in-oil microemulsions, by using Ru(bpy)32+ as sensitizer and (NH4)3EDTA as electron donor. With the amphiphilic electron acceptors (n = 8-18) the water-in-oil microemulsion media affect the charge separation of the initial encounter cage complex, [Ru(bpy)23+⋯CnV+·], and stabilize the photoproducts, CnV+· and Ru(bpy)33+, against the recombination process. Consequently, enhanced quantum yields for CnV+· formation are observed under continuous illumination.

AB - The photosensitized reduction of the series of dialkyl-4,4′-bipyridinium salts, CnV2+, is examined in water-in-oil microemulsions, by using Ru(bpy)32+ as sensitizer and (NH4)3EDTA as electron donor. With the amphiphilic electron acceptors (n = 8-18) the water-in-oil microemulsion media affect the charge separation of the initial encounter cage complex, [Ru(bpy)23+⋯CnV+·], and stabilize the photoproducts, CnV+· and Ru(bpy)33+, against the recombination process. Consequently, enhanced quantum yields for CnV+· formation are observed under continuous illumination.

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Photoredox reactions in water-in-oil microemulsions. The functions of amphiphilic viologens in charge separation and electron transfer across a water-oil boundary

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