Author/Authors :
Magin، نويسنده , , I.M. and Shevelʹkov، نويسنده , , V.S. and Obynochny، نويسنده , , A.A. and Kruppa، نويسنده , , A.I and Leshina، نويسنده , , T.V.، نويسنده ,
Abstract :
The time-resolved 1H photo-CIDNP formed upon photocleavage of diisopropylketone in the presence and absence of stable radical (TEMPO) and dodecanetiol-1 as radical traps has been studied. It was found that TEMPO affects CIDNP formation in a primary radical pair not only as a radical acceptor but also through spin exchange. The rate constant of the recombination of isopropyl radicals and TEMPO in acetonitrile at ambient temperature was determined as (2.4±0.5)×108 M−1s−1.
