Wmosecond laser flash photol~s~s tcchmques ~erc used to observe the gemmate recombmntlon hmetlcs of 2-(j'dlphe-II) lamlnophcnyI)-lndandlone-I ,3-l I radicals (R) m vasehne od at O=C The bmetics are closely described by the Kofman-Burshtem model The rate of dlifuslon-controlled recombmatron of R by r
CIDNP kinetics in homogeneous recombination of radicals
โ Scribed by E.B. Krissinel'
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 973 KB
- Volume
- 169
- Category
- Article
- ISSN
- 0301-0104
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๐ SIMILAR VOLUMES
The kinetics of the reversible recombination of the 2-phenyl-(I), 2-p-methoxyphenyl-(111, and 2-p-nitrophenyl-3-oxo-2,3-dihydrobenzothiophene-2-y1 (111) radicals R + R ---' D (1) have been investigated. Recombination rate constants of R(1-111) have been determined in different solvents (2kl -lo9 M-'
## Abstract The polarisation of phosphorus nuclei (^31^P CIDNP) during the free radical reactions of triakyl and triaryl phosphites proceeding via intermediate phosphoranyl radicals is discussed.
The laser flash photolysis-absorption technique has been used to study the F + FCO + M ~ CF20 + M recombination reaction between 20 and 700 Torr of M = CF 4 at 296 K. The values krec, 0 = (5.6 + 1.2) ร 10 -29 [CF 4] cm 3 molecule-1 s-1 and krec,o~ = (7.9 + 1.1) X 10-11 cm 3 molecule-1 s-1 were deter