Quenching of triplet states of carbocyanine dyes by nitroxyl radical has been investigated by the f&b pliotolysis method. Quenching of triplet state carbocyanine dyes with one po~yme#yne chain occurs via enhanced intersystem crossing on exchanse interaction with the radicaf, Quencbiog of tri&t state
Quenching of triplet states by nitroxyl radicals in the presence of surfactants
β Scribed by A.S. Tatikolov; V.A. Kuzmin; L.A. Singer
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 428 KB
- Volume
- 124
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Quenching of aromatic excited singlet states (9,10-dimethyl anthracene, 9,10-diphenyl anthracene and perylene) by nitroxyl radical was studied by flash photolysis and fluorimetrically. It is established that the dominant quenching mechanism is enhanced intersystem crossing in the collision complex w
The laser flash photolysis ofpyrazine in water and in organic solvents has been examined. The "(II, a\*) state in water has absorption bands at 230. = 260, = 295, =. 640,700 and 8 10 nm, and decays with k = 2.2 X 10' set-' . It is quenched by oxygen with k = 3.2 X 10' &I-'set-' and by various H-atom
The rate constant for the quenching of triplet anthracene by molecular oxygen in the presence or absence of polystyrene was measured. The quenching ability is not affected by the presence of polymer.