CIDNP magnetic field dependence in biradicals
โ Scribed by P.W. Atkins; G.T. Evans
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 281 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0009-2614
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๐ SIMILAR VOLUMES
Incorporation of deuterium into the enobzable positions of several cyclic and bicyclic ketones alters the magnetic field dependence of CIDNP resulting from photolysis of the ketones. These results cannot be explained in terms of D-induced changes in the conformational populations of the biradicals f
S-To type nuclear spin polarization has been observed in the reaction products of photochemically generated acyl-aIll biradicals in the presence of a scavenger. From the magnetic field dependence of biradical CIDNP the rate constant k of proton abstraction from 2-methyl-2-propanethiol by the alkyl s
A novel pulse technique for the determination of the absolute CIDNP enhancement factor is developed. The photolysis reaction of cyclododecanone is studied with this technique. Anomalous CIDNP enhancement in low magnetic fields is found.