Reversible hydrogen photoabstraction by nitroaromatic compounds. A chemically induced nuclear polarization study
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 9,p. 1072-1074
- https://doi.org/10.1039/p29760001072
Abstract
Proton nuclear polarization is observed in the photoreaction of aromatic vitro-compounds with 2,6-di-t-butyl-phenols. The polarization is due to a reversible abstraction of the phenol hydroxy-hydrogen by the excited triplet nitro-compound. The occurrence of polarization depends on the triplet energy of the vitro-compound and on the O–H bond dissociation energy of the phenol. Observation of polarization forms the basis for the estimation of the O–H bond dissociation energy of ArNO2H· radicals.Keywords
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