Excited state formation by ion kxmbination in solutions of ffuorcne in squalane has been stcdied by puke radiolysis at the center of a large electromagnet. The products of the slower part if the ion recombination ue affxted by ark applied magnetic field. The fluorescence yield increases by a factor
Geminate recombination kinetics of triplet radical ion paris on porous glass: Magnetic field effect
โ Scribed by P.P. Levin; I.V. Katalnikov; V.A. Kuzmin
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 416 KB
- Volume
- 167
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Geminate recombination kinetics has been studied using the diffuse reflectance laser flash technique of radical ion pairs (RIP) formed by electron transfer from triphenylamine to triplet benzophenone, 9,1 O-anthraquinone, duroquinone or 2,6diphenyl-1,4benzoquinone both adsorbed onto porous silica. T
In aqueous solutions a-and y-cyclodextrins (CDs) separate the ground state complexes of the porphyrin (P) and viologen (Vi'+) moieties in the zinc porphyrin-tetraviologen supramolecule and modulate dynamics of the connecting polymethylene chains between P and Vi\*+. Effects of the chain dynamics bei
Scintillation pulse shapes from solutions of para-tcrphenyl in dccalin, yu.ri~rre and benzcnc can be cbangcd by magnetic fields. A striking effect of deutcration on the evolution of the effect in time is obscrvcd. confirming the rote of cIectronnuclear hypcrfirw interaction in the solute radical ion
## AhStNCt The recombination kinetics of protonated and perdeuteriated chain-linked ( ( CH2), linker, n = 3, 6, and 10) triplet ketylphenoxyl radical pairs (RP ) have been examined by using the laser flash technique under an external magnetic field. The high values of magnetic isotope effect (MIE)
Lqcrimentaily determined Btt2 x-dues characterizing the magnetic field dependence of molecular triplet production from radiral ion pairs originating from photoinduced electron transfer are compared with semi-empirical values obtained xcordmg to B,,l(hfi) = 2& +Bg)/(B, + Bz) from the root-mean-square