Methyl viologen reactions. 5. Rates and mechanism of cation-radical formation in aqueous base

1988 ◽  
Vol 53 (7) ◽  
pp. 1481-1485 ◽  
Author(s):  
Anne L. Rieger ◽  
John O. Edwards
Keyword(s):  
Methyl Viologen ◽  
Cation Radical ◽  
Radical Formation ◽  
Aqueous Base

The photochemistry of EDA complexes in micellar solutions. II. The stilbene–methylviologen system in the presence of oxygen

1991 ◽  
Vol 69 (1) ◽  
pp. 146-150 ◽  
Author(s):  
M. Hamity ◽  
R. H. Lema
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Key Words ◽  
Methyl Viologen ◽  
Sodium Dodecyl ◽  
Cation Radical ◽  
Reaction Scheme ◽  
Quantum Yields ◽  
Micellar Solutions ◽  
Trans Stilbene ◽  
Donor Acceptor

The photolyses of electron donor–acceptor (EDA) complexes formed between both cis-stilbene (cS) and trans-stilbene (tS) as donors and mefhylviologen (MV+2) as acceptor have been carried out in homogeneous ethanolic and in micellar sodium dodecyl sulfate (SDS) solutions, in the presence of oxygen. The stilbene loss quantum yields (Φ−S) have been determined in both media. Quantum yields were observed to be dependent upon methylviologen concentration and the acidity of media. A reaction scheme is proposed, which accounts for experimental results and can be related to the photochemistry of MV+2 and its cation radical MV•+. Key words: EDA complexes, micelles, methyl viologen, stilbene.

ChemInform Abstract: AMINE DIMER CATION RADICAL FORMATION UPON QUENCHING OF TRANS-STILBENE-AMINE EXCIPLEXES BY AMINES

1984 ◽  
Vol 15 (5) ◽  
Author(s):  
W. HUB ◽  
S. SCHNEIDER ◽  
F. DOERR ◽  
J. D. OXMAN ◽  
F. D. LEWIS
Keyword(s):  
Cation Radical ◽  
Radical Formation ◽  
Trans Stilbene

10-Methylphenothiazine cation radical formation on alumina and silver or palladium doped alumina

1979 ◽  
Vol 10 (2) ◽  
pp. 113-117 ◽  
Author(s):  
A. Sh. Grigorian ◽  
K. C. Khulbe ◽  
R. S. Mann ◽  
P. D. Grover
Keyword(s):  
Cation Radical ◽  
Radical Formation

Cu(II)-Mediated Intramolecular Carbene Cation Radical Formation:  Relevance to Unimolecular Metal−Ligand Radical Intermediates

2002 ◽  
Vol 124 (2) ◽  
pp. 272-280 ◽  
Author(s):  
Brian J. Kraft ◽  
Hilary J. Eppley ◽  
John C. Huffman ◽  
Jeffrey M. Zaleski
Keyword(s):  
Cation Radical ◽  
Radical Formation ◽  
Radical Intermediates ◽  
Metal Ligand
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