Magnetic field effect on the hydrogen abstraction of xanthone from xanthene in SDS micelles
โ Scribed by Yoshifumi Tanimoto; Masanobu Takashima; Michiya Itoh
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 325 KB
- Volume
- 100
- Category
- Article
- ISSN
- 0009-2614
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The magnetic field effect on the hydrogen abstraction reaction of anthraquinone in sodium dodecyl sulfate (SDS) micellar solution has been studied by two-step laser escitation fluorescence including a variable delay technique. The risetime of the "cage product" is 380 ns at 0 G and 890 ns at 800 G,
The magnetic field effect on the intramolecular hydrogen abstraction of a-(xanthone-2-carbonyloxy)-w-(xanthene-2-carbonyloxy)alkanes (X0-n-XH, n=2-12), in bichromophoric compounds, was studied using laser flash photolysis. Excited triplet X0 abstracts a hydrogen atom from the XH moiety, generating a
The mqnetx field etlcct upon the decay rate of the benzophenone betyl rsdrcal m rnrcellar solutaon ~3s stuched va nanosecond her photoi) srs Its decay IS represented by a comb~atron of two exponentrals The rate constant oi rhe slon component X\ZIS found to decrease from 1 6 Y IO6 s-' at zero field t