TY - JOUR
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.
UR - http://www.scopus.com/inward/record.url?scp=0010183710&partnerID=8YFLogxK
U2 - 10.1021/j150663a036
DO - 10.1021/j150663a036
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AN - SCOPUS:0010183710
SN - 0022-3654
VL - 88
SP - 4366
EP - 4370
JO - Journal of Physical Chemistry
JF - Journal of Physical Chemistry
IS - 19
ER -